AnatomyDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPsychiatry and PsychologyPhenomena and ProcessesInformation ScienceHealth CareGeographicals
Peak Expiratory Flow RateForced Expiratory Flow RatesAsthmaMaximal Expiratory Flow RateForced Expiratory VolumeAlbuterolVital CapacityRespiratory Function TestsBronchodilator AgentsSpirometryAdministration, InhalationBeclomethasoneIpratropiumAtropine DerivativesNebulizers and VaporizersAirway ObstructionLungAnti-Asthmatic AgentsPulmonary VentilationAsthma, Exercise-InducedTerbutalineAerosolsMaximal Expiratory Flow-Volume CurvesLung Diseases, ObstructiveDouble-Blind MethodBronchitisBudesonideBronchial Provocation TestsDustRespiration DisordersRespiratory Tract DiseasesPregnenedionesLeukotriene AntagonistsCoughAir PollutantsFenoterolAirway ResistanceRespiratory SoundsLung Volume MeasurementsOccupational DiseasesTotal Lung CapacityCircadian RhythmMaximal Midexpiratory Flow RateAdrenergic beta-AgonistsClinical Trials as TopicAdrenal Cortex HormonesTime FactorsAcute DiseaseCross-Over StudiesRespiratory MechanicsOccupational ExposurePrednisoloneRespirationPhysical ExertionGlucocorticoidsProspective StudiesRandom AllocationChronic DiseaseMethacholine ChlorideTreatment OutcomeOzoneBronchiDyspneaDrug Therapy, CombinationBlood Flow VelocityRegional Blood FlowDrug Administration ScheduleExpiratory Reserve VolumeSmokingLung DiseasesIndiaBronchial HyperreactivityCross-Sectional StudiesQuestionnairesEthanolaminesTidal VolumeInspiratory CapacityAerosol PropellantsFunctional Residual CapacityAndrostadienesHeart Rate
Peak Expiratory Flow Rate
Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR.
Forced Expiratory Flow Rates
The rate of airflow measured during a FORCED VITAL CAPACITY determination.
Asthma
A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
Maximal Expiratory Flow Rate
The airflow rate measured during the first liter expired after the first 200 ml have been exhausted during a FORCED VITAL CAPACITY determination. Common abbreviations are MEFR, FEF 200-1200, and FEF 0.2-1.2.
Forced Expiratory Volume
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.
Albuterol
A short-acting beta-2 adrenergic agonist that is primarily used as a bronchodilator agent to treat ASTHMA. Albuterol is prepared as a racemic mixture of R(-) and S(+) stereoisomers. The stereospecific preparation of R(-) isomer of albuterol is referred to as levalbuterol.
Vital Capacity
The volume of air that is exhaled by a maximal expiration following a maximal inspiration.
Respiratory Function Tests
Measurement of the various processes involved in the act of respiration: inspiration, expiration, oxygen and carbon dioxide exchange, lung volume and compliance, etc.
Bronchodilator Agents
Agents that cause an increase in the expansion of a bronchus or bronchial tubes.
Spirometry
Measurement of volume of air inhaled or exhaled by the lung.
Administration, Inhalation
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
Beclomethasone
An anti-inflammatory, synthetic glucocorticoid. It is used topically as an anti-inflammatory agent and in aerosol form for the treatment of ASTHMA.
Ipratropium
A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.
Atropine Derivatives
Analogs and derivatives of atropine.
Nebulizers and Vaporizers
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
Airway Obstruction
Any hindrance to the passage of air into and out of the lungs.
Lung
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
Anti-Asthmatic Agents
Drugs that are used to treat asthma.
Pulmonary Ventilation
The total volume of gas inspired or expired per unit of time, usually measured in liters per minute.
Asthma, Exercise-Induced
Asthma attacks following a period of exercise. Usually the induced attack is short-lived and regresses spontaneously. The magnitude of postexertional airway obstruction is strongly influenced by the environment in which exercise is performed (i.e. inhalation of cold air during physical exertion markedly augments the severity of the airway obstruction; conversely, warm humid air blunts or abolishes it).
Terbutaline
A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic.
Aerosols
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Maximal Expiratory Flow-Volume Curves
Curves depicting MAXIMAL EXPIRATORY FLOW RATE, in liters/second, versus lung inflation, in liters or percentage of lung capacity, during a FORCED VITAL CAPACITY determination. Common abbreviation is MEFV.
Lung Diseases, Obstructive
Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.
Double-Blind Method
A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.
Bronchitis
Inflammation of the large airways in the lung including any part of the BRONCHI, from the PRIMARY BRONCHI to the TERTIARY BRONCHI.
Budesonide
A glucocorticoid used in the management of ASTHMA, the treatment of various skin disorders, and allergic RHINITIS.
Bronchial Provocation Tests
Tests involving inhalation of allergens (nebulized or in dust form), nebulized pharmacologically active solutions (e.g., histamine, methacholine), or control solutions, followed by assessment of respiratory function. These tests are used in the diagnosis of asthma.
Dust
Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
Respiration Disorders
Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.
Respiratory Tract Diseases
Pregnenediones
Unsaturated pregnane derivatives containing two keto groups on side chains or ring structures.
Leukotriene Antagonists
A class of drugs designed to prevent leukotriene synthesis or activity by blocking binding at the receptor level.
Cough
A sudden, audible expulsion of air from the lungs through a partially closed glottis, preceded by inhalation. It is a protective response that serves to clear the trachea, bronchi, and/or lungs of irritants and secretions, or to prevent aspiration of foreign materials into the lungs.
Air Pollutants
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
Fenoterol
An adrenergic beta-2 agonist that is used as a bronchodilator and tocolytic.
Airway Resistance
Physiologically, the opposition to flow of air caused by the forces of friction. As a part of pulmonary function testing, it is the ratio of driving pressure to the rate of air flow.
Respiratory Sounds
Noises, normal and abnormal, heard on auscultation over any part of the RESPIRATORY TRACT.
Lung Volume Measurements
Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.
Occupational Diseases
Diseases caused by factors involved in one's employment.
Total Lung Capacity
The volume of air contained in the lungs at the end of a maximal inspiration. It is the equivalent to each of the following sums: VITAL CAPACITY plus RESIDUAL VOLUME; INSPIRATORY CAPACITY plus FUNCTIONAL RESIDUAL CAPACITY; TIDAL VOLUME plus INSPIRATORY RESERVE VOLUME plus functional residual capacity; or tidal volume plus inspiratory reserve volume plus EXPIRATORY RESERVE VOLUME plus residual volume.
Circadian Rhythm
The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.
Maximal Midexpiratory Flow Rate
Measurement of rate of airflow over the middle half of a FORCED VITAL CAPACITY determination (from the 25 percent level to the 75 percent level). Common abbreviations are MMFR and FEF 25%-75%.
Adrenergic beta-Agonists
Drugs that selectively bind to and activate beta-adrenergic receptors.
Clinical Trials as Topic
Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.
Adrenal Cortex Hormones
Time Factors
Elements of limited time intervals, contributing to particular results or situations.
Acute Disease
Disease having a short and relatively severe course.
Cross-Over Studies
Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)
Respiratory Mechanics
The physical or mechanical action of the LUNGS; DIAPHRAGM; RIBS; and CHEST WALL during respiration. It includes airflow, lung volume, neural and reflex controls, mechanoreceptors, breathing patterns, etc.
Occupational Exposure
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Prednisolone
A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.
Respiration
The act of breathing with the LUNGS, consisting of INHALATION, or the taking into the lungs of the ambient air, and of EXHALATION, or the expelling of the modified air which contains more CARBON DIOXIDE than the air taken in (Blakiston's Gould Medical Dictionary, 4th ed.). This does not include tissue respiration (= OXYGEN CONSUMPTION) or cell respiration (= CELL RESPIRATION).
Physical Exertion
Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.
Glucocorticoids
A group of CORTICOSTEROIDS that affect carbohydrate metabolism (GLUCONEOGENESIS, liver glycogen deposition, elevation of BLOOD SUGAR), inhibit ADRENOCORTICOTROPIC HORMONE secretion, and possess pronounced anti-inflammatory activity. They also play a role in fat and protein metabolism, maintenance of arterial blood pressure, alteration of the connective tissue response to injury, reduction in the number of circulating lymphocytes, and functioning of the central nervous system.
Prospective Studies
Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.
Random Allocation
A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects.
Chronic Disease
Diseases which have one or more of the following characteristics: they are permanent, leave residual disability, are caused by nonreversible pathological alteration, require special training of the patient for rehabilitation, or may be expected to require a long period of supervision, observation, or care. (Dictionary of Health Services Management, 2d ed)
Methacholine Chloride
A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116)
Treatment Outcome
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Ozone
The unstable triatomic form of oxygen, O3. It is a powerful oxidant that is produced for various chemical and industrial uses. Its production is also catalyzed in the ATMOSPHERE by ULTRAVIOLET RAY irradiation of oxygen or other ozone precursors such as VOLATILE ORGANIC COMPOUNDS and NITROGEN OXIDES. About 90% of the ozone in the atmosphere exists in the stratosphere (STRATOSPHERIC OZONE).
Bronchi
The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi which branch out into secondary bronchi, and tertiary bronchi which extend into BRONCHIOLES and PULMONARY ALVEOLI.
Dyspnea
Difficult or labored breathing.
Drug Therapy, Combination
Therapy with two or more separate preparations given for a combined effect.
Blood Flow Velocity
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
Regional Blood Flow
The flow of BLOOD through or around an organ or region of the body.
Drug Administration Schedule
Time schedule for administration of a drug in order to achieve optimum effectiveness and convenience.
Expiratory Reserve Volume
The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration. Common abbreviation is ERV.
Smoking
Inhaling and exhaling the smoke of burning TOBACCO.
Lung Diseases
Pathological processes involving any part of the LUNG.
India
Bronchial Hyperreactivity
Tendency of the smooth muscle of the tracheobronchial tree to contract more intensely in response to a given stimulus than it does in the response seen in normal individuals. This condition is present in virtually all symptomatic patients with asthma. The most prominent manifestation of this smooth muscle contraction is a decrease in airway caliber that can be readily measured in the pulmonary function laboratory.
Cross-Sectional Studies
Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time.
Questionnaires
Predetermined sets of questions used to collect data - clinical data, social status, occupational group, etc. The term is often applied to a self-completed survey instrument.
Ethanolamines
AMINO ALCOHOLS containing the ETHANOLAMINE; (-NH2CH2CHOH) group and its derivatives.
Tidal Volume
The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.
Inspiratory Capacity
The maximum volume of air that can be inspired after reaching the end of a normal, quiet expiration. It is the sum of the TIDAL VOLUME and the INSPIRATORY RESERVE VOLUME. Common abbreviation is IC.
Aerosol Propellants
Compressed gases or vapors in a container which, upon release of pressure and expansion through a valve, carry another substance from the container. They are used for cosmetics, household cleaners, and so on. Examples are BUTANES; CARBON DIOXIDE; FLUOROCARBONS; NITROGEN; and PROPANE. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Functional Residual Capacity
The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.
Androstadienes
Derivatives of the steroid androstane having two double bonds at any site in any of the rings.
Heart Rate
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.

Respiratory symptoms among glass bottle workers--cough and airways irritancy syndrome? (1/1037)

Glass bottle workers have been shown to experience an excess of respiratory symptoms. This work describes in detail the symptoms reported by a cohort of 69 symptomatic glass bottle workers. Symptoms, employment history and clinical investigations including radiology, spirometry and serial peak expiratory flow rate records were retrospectively analyzed from clinical records. The results showed a consistent syndrome of work-related eye, nose and throat irritation followed after a variable period by shortness of breath. The latent interval between starting work and first developing symptoms was typically 4 years (median = 4 yrs; range = 0-28). The interval preceding the development of dysponea was longer and much more variable (median = 16 yrs; range = 3-40). Spirometry was not markedly abnormal in the group but 57% of workers had abnormal serial peak expiratory flow rate charts. Workers in this industry experience upper and lower respiratory tract symptoms consistent with irritant exposure. The long-term functional significance of these symptoms should be formally investigated.  (+info)

Fine particulate air pollution, resuspended road dust and respiratory health among symptomatic children. (2/1037)

The short-term association of particulate air pollution with peak expiratory flow rate (PEF) and respiratory symptoms was examined. Forty-nine children with chronic respiratory symptoms aged 8-13 yrs were followed daily for six weeks in spring, 1995, in Kuopio, Finland. Daily concentrations of particulate material with a 50% cut-off aerodynamic diameter < or = 10 microm and < or = 2.5 microm (PM10 and PM2.5, respectively), black carbon, and the number concentrations of particles from 0.01-10 microm diameter were measured. During the study period, PM10 were mainly resuspended soil and street dust, and the concentration was estimated using aluminum content of PM10 samples. No consistent effect of particles was found as the associations varied by lag. Of the lags examined, only 1-day lagged PM2.5 was statistically significantly associated with morning PEF (beta=-1.06, SE=0.52 (per interquartile increase in pollutant)). Evening PEF was significantly associated with the 1-day lagged number of particles in the size range 0.1-1.0 microm (beta=-1.56, SE=0.72). One-day lagged PM10, PM2.5-10, PM2.5 and resuspended PM10, and 4-day average of PM2.5 were significantly associated with increased risk of cough. Given the short duration of the study, separating the effects of different types of particles was difficult. The present study demonstrates the highly variable size and number distribution and chemical composition of particles in Finland, and underlines the importance of measuring the size and chemical composition of particles to determine which types of particles are associated with health effects.  (+info)

Airway inflammatory response to ozone in subjects with different asthma severity. (3/1037)

The aim of this study was to evaluate whether ozone exposure induces a similar airway inflammatory response in subjects with different degrees of asthma severity. Two groups of asthmatic subjects were studied: seven with intermittent mild asthma not requiring regular treatment (group A); and seven with persistent mild asthma requiring regular treatment with inhaled corticosteroids and long-acting beta2-agonists (group B). All subjects were exposed, in a randomized cross-over design, to air or O3 (0.26 parts per million (ppm) for 2 h with intermittent exercise); subjects in group B withdrew from regular treatment 72 h before each exposure. Before the exposure, and 1 and 2 h after the beginning of the exposure they performed a pulmonary function test, and a questionnaire was completed to obtain a total symptom score (TSS). Six hours after the end of the exposure, hypertonic saline (HS) sputum induction was conducted. Sputum cell percentages, eosinophil cationic protein (ECP) and interleukin (IL)-8 concentrations in the sputum supernatant were measured. TSS significantly increased and forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) significantly decreased after O3 exposure in comparison with air exposure in group A, whereas no changes were observed in group B except for a significant decrement of FEV1 2 h after the beginning of O3 exposure. Sputum neutrophil percentage was significantly higher after O3 exposure than after air exposure in both groups (Group A: 70.2% (28-87) versus 26.6% (8.6-73.2); Group B: 62.1% (25-82.4) versus 27.9% (14.4-54)). IL-8 was higher in sputum supernatant collected 6 h after O3 exposure than after air, only in group A. No change due to O3 has been found in sputum eosinophil percentage and ECP concentration in both groups. In conclusion, the degree of airway response to a short-term exposure to ozone is different in subjects with asthma of different severity. The available data do not allow elucidation of whether this difference depends on the severity of the disease or on the regular anti-inflammatory treatment.  (+info)

As-required versus regular nebulized salbutamol for the treatment of acute severe asthma. (4/1037)

Current British guidelines for the administration of beta2-agonists in acute severe asthma recommend regular nebulized therapy in hospitalized patients, followed by as-required (p.r.n.) use via hand-held devices after discharge. Since beta2-agonists do not possess anti-inflammatory activity in vivo, and are thus unlikely to influence the rate of recovery from an asthma exacerbation, it was hypothesized that patients given the short-acting beta2-agonist salbutamol on an as-required basis after admission to hospital would recover as quickly as those on regular treatment, but with potential reductions in the total dose delivered. Forty-six patients with acute severe asthma were randomly assigned to either regular prescriptions of nebulized salbutamol or to usage on a p.r.n. basis, from 24 h after hospital admission. The primary outcome measures were length of hospital stay, time to recovery, and frequency of salbutamol nebulization from 24 h after admission to discharge. Secondary outcome measures were treatment side-effects (tremor, palpitations), and patient satisfaction. Length of hospital stay was reduced in those patients allocated to p.r.n. salbutamol (geometric mean (GM) 3.7 days) versus regular salbutamol (GM 4.7 days). Time taken for peak expiratory flow to reach 75% of recent best was the same in both groups. There was a highly significant reduction in the number of times nebulized therapy was delivered to the p.r.n. group (GM 7.0, range 1-30) compared with the regular treatment group (GM 14.0, range 4-57; p=0.003; 95% confidence interval for ratio of GMs 1.29-3.09). In addition, patients reported less tremor (p=0.062) and fewer palpitations (p=0.049) in the p.r.n. group. Of the patients in the p.r.n. group who had received regular nebulized therapy on previous admissions (n=12), all preferred the p.r.n. regimen. Prescribing beta2-agonists on a p.r.n. basis from 24 h after hospital admission is associated with reduced amount of drug delivered, incidence of side-effects, and possibly length of hospital stay. This has implications for the efficient use of healthcare resources.  (+info)

Acute saline infusion reduces alveolar-capillary membrane conductance and increases airflow obstruction in patients with left ventricular dysfunction. (5/1037)

BACKGROUND: Impaired alveolar-capillary membrane conductance is the major cause for the reduction in pulmonary diffusing capacity for carbon monoxide (DLCO) in heart failure. Whether this reduction is fixed, reflecting pulmonary microvascular damage, or is variable is unknown. The aim of this study was to assess whether DLCO and its subdivisions, alveolar-capillary membrane conductance (DM) and pulmonary capillary blood volume (Vc), were sensitive to changes in intravascular volume. In addition, we examined the effects of volume loading on airflow rates. METHODS AND RESULTS: Ten patients with left ventricular dysfunction (LVD) and 8 healthy volunteers were studied. DM and Vc were determined by the Roughton and Forster method. The forced expiratory volume in 1 second (FEV1), vital capacity, and peak expiratory flow rates (PEFR) were also recorded. In patients with LVD, infusion of 10 mL. kg-1 body wt of 0.9% saline acutely reduced DM (12.0+/-3.3 versus 10.4+/-3.5 mmol. min-1. kPa-1, P<0.005), FEV1 (2.3+/-0.4 versus 2.1+/-0.4 L, P<0.0005), and PEFR (446+/-55 versus 414+/-56 L. min-1, P<0.005). All pulmonary function tests had returned to baseline values 24 hours later. In normal subjects, saline infusion had no measurable effect on lung function. CONCLUSIONS: Acute intravascular volume expansion impairs alveolar-capillary membrane function and increases airflow obstruction in patients with LVD but not in normal subjects. Thus, the abnormalities of pulmonary diffusion in heart failure, which were believed to be fixed, also have a variable component that could be amenable to therapeutic intervention.  (+info)

Exhaled nitric oxide; relationship to clinicophysiological markers of asthma severity. (6/1037)

Bronchial asthma is an airway disorder associated with bronchial hyperresponsiveness, variable airflow obstruction and elevated levels of nitric oxide (NO) in exhaled air. The variables all reflect, in part, the underlying airway inflammation in this disease. To understand their interrelationships we have investigated the relationship between exhaled NO levels and clinicophysiological markers of asthma severity. Twenty-six steroid naive atopic asthmatics participated in the analysis. All were given diary cards and were asked to record their peak expiratory flow (PEF) rates twice daily together with their asthma symptom scores and beta-agonist use. Diary cards were collected 2 weeks later and measurements of exhaled NO levels, FEV1 and histamine bronchial hyperreactivity (PC20 histamine) were undertaken. Exhaled NO levels were significantly higher in our study population than in normal control subjects and correlated negatively with PC20 histamine (r = -0.51; P = 0.008) and positively with PEF diurnal variability (r = 0.58; P = 0.002), but not with symptom scores, beta-agonist use of FEV1 (%). We conclude that a significant relationship exists between exhaled NO levels and the two characteristic features and markers of asthma severity, namely bronchial hyperreactivity and PEF diurnal variability. The lack of correlation between symptom score and beta-agonist use, of FEV1 (%) predicted and exhaled NO suggests that these measures are reflective of differing aspects of asthma.  (+info)

Time course of respiratory decompensation in chronic obstructive pulmonary disease: a prospective, double-blind study of peak flow changes prior to emergency department visits. (7/1037)

The aim of this study was to look at changes in peak expiratory flow rates (PEFR) prior to emergency department visits for decompensated chronic obstructive pulmonary disease (COPD). It was designed as a prospective, double-blind study at the Albuquerque Veterans Affairs Medical Center. Twelve patients with an irreversible component of airflow obstruction on pulmonary function tests were assessed. At entry, all subjects were instructed in the use of a mini-Wright peak flow meter with electronic data storage. They then entered a 6-month monitoring phase in which they recorded PEFR twice daily, before and after bronchodilators. The meter displays were disabled so that the patients and their physicians were blinded to all values. Medical care was provided in the customary manner. Patients were considered to have respiratory decompensation if they required treatment for airflow obstruction in the Emergency Department (ED) and no other causes of dyspnea could be identified. Simple linear regression was used to model changes in PEFR over time. The 12 subjects had 22 episodes of respiratory decompensation during 1741 patient-days of observation. Two episodes could not be analysed because of missing values. Ten episodes in seven subjects were characterized by a significant linear decline in at least one peak flow parameter prior to presentation. The mean rates of change for the four daily parameters varied from 0.22% to 0.27% predicted per day (or 1.19 to 1.44 1 min-1 day-1). The average decrement in these parameters ranged from 30.0 to 33.8 1 min-1 (or 18.6%-25.9% of their baseline values). No temporal trends were found for the 10 episodes occurring in the other five subjects. We concluded that respiratory decompensation is characterized by a gradual decline in PEFR in about half of cases. Future studies should be done to elucidate the mechanisms of respiratory distress in the other cases.  (+info)

A comparative study of the effects of ketotifen, disodium cromoglycate, and beclomethasone dipropionate on bronchial mucosa and asthma symptoms in patients with atopic asthma. (8/1037)

Asthma is a chronic inflammatory disorder of the airways that is characterized by infiltration of many inflammatory cells into the bronchial mucosa. We compared the effects of ketotifen, disodium cromoglycate (DSCG), and beclomethasone dipropionate (BDP) on inflammatory cells in the bronchial mucosa and on the asthma symptoms of patients with atopic asthma. In this 12-week parallel study, 32 patients were randomly allocated to either the ketotifen group (2 mg day-1, n = 13), DSCG group (8 mg day-1, n = 9) or BDP (400 micrograms day-1, n = 10). Each subject recorded daily asthma symptoms and peak expiratory flow (PEF). Before and after treatment, pulmonary function and bronchial responsiveness to methacholine were evaluated, and fibreoptic bronchoscopy and biopsy were performed before and after treatment. Biopsy specimens were obtained by bronchoscopy. We performed immunohistochemistry using specific monoclonal antibodies for activated eosinophils (EG2), mast cells (AA1), and T cells (CD3, CD4, and CD8). Our clinical findings showed significant improvement in symptom score and bronchial responsiveness (P < 0.01) each) in all groups. Both the DSCG and the BDP groups had significantly better symptom scores than the ketotifen group (P < 0.05, both groups). PEF significantly increased in the DSCG group in comparison to the ketotifen (P < 0.01) and BDP (P < 0.05) groups, FEV1% increased significantly in the DSCG (P < 0.01) and BDP (P < 0.05) groups in comparison to the ketotifen group. Compared with their baseline values, treatment significantly decreased EG2+ activated eosinophils, and CD3+ and CD4+ T cells, in each group (P < 0.01). Both the DSCG (P < 0.05) and the BDP groups (P < 0.01) exhibited significant decreases in AA1+ mast cell count, but this was not observed in the ketotifen group. Comparing before- and after-treatment values, only the DSCG group exhibited a significant decrease in the number of CD8+ T cells (P < 0.01). Ketotifen, DSCG, and BDP all showed anti-inflammatory activity as determined by examination of the bronchial mucosa of asthmatic patients; and both the DSCG and BDP groups had better clinical responses than the ketotifen group.  (+info)

Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil...Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil...
Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil Nadu, India
https://ijpediatrics.com/index.php/ijcp/article/view/3059/2085
Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil...Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil...
Study on peak expiratory flow rate and its influencing factors in healthy school children in Kancheepuram district of Tamil Nadu, India
https://www.ijpediatrics.com/index.php/ijcp/article/view/3059
S160 The effect of shift work on serial peak expiratory flow measurements used to diagnose occupational asthma | ThoraxS160 The effect of shift work on serial peak expiratory flow measurements used to diagnose occupational asthma | Thorax
We investigated the effects of shift work on Peak Expiratory Flow (PEF) measurements used for diagnosing occupational asthma (OA). In a clinic database of workers investigated for OA, 123 workers with OA and 69 workers without OA had PEF records containing ,1 shift pattern with ≥4 days on each shift. The OA definition was based on Oasys-2 score ,2.51 and the non-OA on an alternative clinical diagnosis and Oasys-2 score ,2.51. Records not fulfilling the minimum data quantity for the Area Between Curves (ABC) PEF score, or containing respiratory infections, changes in asthma treatment or different exposures on each shift were excluded. The mean ABC score, mean PEF diurnal variation (DV) on workdays and cross-shift PEF changes were calculated for each shift. The ABC score of the OA workers was lower on nights (p=0.028) and afternoons (p=0.020) compared to day shifts, without significant differences in diurnal variation. There was statistically significant difference between day and night shift ...
http://thorax.bmj.com/content/65/Suppl_4/A72.2
DIGITAL PEAK FLOW METERDIGITAL PEAK FLOW METER
DIGITAL PEAK FLOW METER DIGITAL PEAK FLOW METER PEAK FLOWMETER PEAK FLOW METER DIGITAL PEAK FLOW METER DIGITAL PEAK FLOW METERS PEAK FLOWMETERS PEAK FLOW METERS DIGITAL PEAK FLOW METERS SPIROMETER SPIROMETERS SPIROMETERY
https://allmedtech.com/dipeflme1.html
Asthma Check Peak Flow Meter Readings Chart For Adults Lung FlowchartsAsthma Check Peak Flow Meter Readings Chart For Adults Lung Flowcharts
Asthma Check Peak Flow Meter Readings Chart For Adults Lung Asthma Flow Meter Chart Flowcharts asthma flow meter readings asthma flow meter chart printable asthma peak flow meter chart asthma check peak flow meter readings asthma peak flow meter readings adults One more free flowchart maker for Mac thats worth your time is Draw.io. You can use the application online or download it to your Mac. This tool also offers a crisp interface thats similar to applications youre familiar with using a simple menu at the top and helpful sidebars. Find Your Next Flowcharts
https://www.virginiamayhew.com/asthma-flow-meter-chart/peak-expiratory-flow-wikiwand-9/
BOHRF comments for: Peak expiratory flow rates in possible occupational asthma, 1991, ChestBOHRF comments for: Peak expiratory flow rates in possible occupational asthma, 1991, Chest
The original authors main conclusions are taken from Abstract, Results and Discussion. They are decided upon by the authors of the BOHRF occupational asthma guidelines and form part of the guidelines.. Objective criteria for interpretation of peak expiratory flow rate readings were assessed in 50 patients evaluated for suspected occupational asthma who had at least two weeks of PEFR readings and an objective diagnosis based on other investigations. The prevalence of occupational asthma was 36 percent. Peak flows were interpreted by two observers blinded to other results. Criteria for a PEFR interpretation of occupational asthma were as follow: diurnal variation greater than or equal to 20 percent relatively more frequently or with greater variation on working days than days off work. With the objective diagnoses as the gold standard, the sensitivity of the PEFR interpretations was 72 percent for OA; specificity for no asthma was 53 percent. Excluding those with greater than or equal to 20 ...
http://www.occupationalasthma.com/bohrfreferenceview.aspx?id=116
Peak Flow MeterPeak Flow Meter
How to Use a Peak Flow Meter Peak flow meters measure how fast you can blow air from your lungs. Peak flow meters give you a reading or score (peak expiratory flow rate, also called PEFR or PEF). Your peak flow scores can help you and your doctor see if your asthma symptoms are getting better or worse.
https://nb.lung.ca/lung-diseases/lung-disease-management/how-use-your-inhaler/peak-flow-meter
Patent US7390305 - Peak flow meter - Google PatentsPatent US7390305 - Peak flow meter - Google Patents
A peak flow meter is described with a body having a sample channel and at least one bypass channel. One of at least two flow range scales may be selected using a flow range selector to adjust the sensitivity of the peak flow meter. A flow range selection indicator provides visual reference as to which flow range scale has been selected. A peak flow calculator used in cooperation with zone indicators on the peak flow meter permits a user to customize the peak flow meter for that users predicted personal best exhalation range.
http://www.google.com/patents/US7390305?dq=7,173,247
PEF versus FEV1 | ThoraxPEF versus FEV1 | Thorax
authors reply Dr Greggs remarks on our paper concern four major points: (1) the differences between the Micro medical spirometer and the mini-Wright peak flow meter; (2) the choice of predicted values; (3) the dissimilar manner in which changes in PEF were compared with changes in FEV1; and (4) the use of changes in FEV1 rather than changes in the FEV1/FVC ratio.. (1) It is true that there are differences between the two devices based upon the different principles-turbine flow measurement and variable orifice peak flow measurement. As we stated in the discussion part of the paper, the turbine flow meter yields slightly lower values than a pneumotachograph1-1 1-2 and the variable orifice peak flow meter shows significantly higher values (200-300 l/min) than a pneumotachograph in the mid region.1-3 In both cases the pneumotachograph value is considered the reference value. Without pertaining to the brand of the portable spirometer used, it appears that the turbine values generally meet the ...
http://thorax.bmj.com/content/55/9/807.1
Inadequate Peak Expiratory Flow Meter Characteristics Detected By Predicted Average Chart FlowchartsInadequate Peak Expiratory Flow Meter Characteristics Detected By Predicted Average Chart Flowcharts
Inadequate Peak Expiratory Flow Meter Characteristics Detected By Predicted Average Chart Predicted Average Peak Expiratory Flow Chart Flowcharts predicted average peak expiratory flow chart Start event symbol signals the first step of a process. Process is a series of actions or steps taken in order to achieve a particular end. Decision is the action or process of deciding something or of resolving a question. End event symbol stands for the result of a process. Find Your Next Flowcharts
https://www.virginiamayhew.com/predicted-average-peak-expiratory-flow-chart/inadequate-peak-expiratory-flow-meter-characteristics-detected-by-a/
Pocket Peak Peak Flow Meter :: Asthma Management Products :: Ferraris Respiratory, Inc.Pocket Peak Peak Flow Meter :: Asthma Management Products :: Ferraris Respiratory, Inc.
Pocket Peak Peak Flow Meter The Pocket Peak peak flow meter is a simple, portable, convenient device that measures air flow or, peak expiratory flow rate (
http://catalog.hastingshomehealth.com/Catalog/Product/19337/Pocket-Peak-Peak-Flow-Meter
Influence of expiratory flow on closing capacity at low expiratory flow rates<...
TY - JOUR. T1 - Influence of expiratory flow on closing capacity at low expiratory flow rates. AU - Rodarte, J. R.. AU - Hyatt, R. E.. AU - Cortese, D. A.. PY - 1975/1/1. Y1 - 1975/1/1. N2 - Single breath oxygen (SBO2) tests at expiratory flow rates of 0.2, 0.5, and 1.01/s were performed by 10 normal subjects in a body plethysmograph. Closing capacity (CC) the absolute lung volume at which phase IV began increased significantly with increases in flow. Five subjects were restudied with a 200 ml bolus of 100% N2 inspired from residual volume after N2 washout by breathing 100% O2 and similar results were obtained. An additional five subjects performed SBO2 tests in the standing, supine and prone positions; closing volume (CV), the lung volume above residual volume at which phase IV began, also increased with increases of expiratory flow. The observed increase in CG with increasing flow did not appear to result from dependent lung regions reaching some critical closing volume at a higher overall ...
https://asu.pure.elsevier.com/en/publications/influence-of-expiratory-flow-on-closing-capacity-at-low-expirator
Product Request - 123698 :: Assess Peak Flow Meter :: RespironicsProduct Request - 123698 :: Assess Peak Flow Meter :: Respironics
Product Request - Assess Peak Flow Meter Measure airway obstruction easily, accurately, and cost-effectively. Peak expiratory flow rate (PEFR) provides an
https://www.brownings.net/Catalog/Online-Catalog-Request/123698/Assess-Peak-Flow-Meter
Digital Peak Flow Meter TOP 10 searching results
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Asthma peak flow chart child
Two of my friends, one chaet them a naturopath had recommended that I try your program. Disclaimer: This article is for https://extrinsicasthma.com/claritin-loratadine-10mg-dosage.html only and should not go here used for the diagnosis or treatment of medical conditions. Heres how to find out your childs personal best peak flow number: Use the same peak flow meter for each reading. A peak flow chart allows asthm doctor read article the person with asthma to recognise the pattern of that persons asthma and see how it changes over time. Ask your child to blow out as hard and as fast as they can. Thank you very much for everything you have done for me! Asthma: Using a peak flow meter By SickKids staff. You need to know how to use a peak flow meter. The chart and instructions have been extensively pilot-tested, and are in use around Australia and in the UK. Peak Flow Meters A portable device that can help measure air flow in and out of the lungs May not be useful for children under the age of 5 ...
https://extrinsicasthma.com/asthma-peak-flow-chart-child.html
Tips From Other Journals - American Family PhysicianTips From Other Journals - American Family Physician
Children who present to the emergency department during a severe exacerbation of asthma are typically treated with inhaled beta agonists and corticosteroids. Despite optimal use of these agents, many children require hospital admission for continued treatment. Several studies have shown that pulmonary function improves when the anticholinergic agent ipratropium bromide is given with a beta agonist, such as albuterol. Qureshi and colleagues conducted a randomized, double-blind, placebo-controlled trial to evaluate whether the addition of inhaled ipratropium decreased hospitalization rates in children who presented to the emergency department with an acute episode of asthma.. Children between the ages of two and 18 years who presented to the emergency department with an acute episode of asthma were eligible for the study. The severity of the asthma at presentation was classified according to the predicted peak expiratory flow rate. A peak expiratory flow rate of more than 70 percent was classified ...
https://www.aafp.org/afp/1999/0301/p1276.html
2004年06月第19卷第3期(摘要) | 台灣胸腔暨重症加護醫學會
Prognosis of Patients with Idiopathic Pulmonary Fibrosis Admitted to the Intensive Care Unit 原發性肺纖維化患者於加護病房之預後探討 簡榮彥(Jung-Yien Chien) ； 鄭之勛(Jih-Shuin Jerng) ； 余忠仁(Chong-Jen Yu) ； 楊泮池(Pan-Chyr Yang) 肺纖維化 ； 呼吸衰竭 ； 呼吸器治療 ； pulmonary fibrosis ； respiratory failure ； mechanical ventilation Heliox-Driven Albuterol Therapy in Severe Persistent Asthma with Acute Exacerbation 氦氧混合氧驅動下對重度氣喘急性發作病患使用支氣管擴張劑化霧治療時的影響 李琳(David Lin Lee) ； 姜霟霆(H-T Chiang) ； 張雅雯(Alice Y-W Chang) ； 張學文(Hsueh-Wen Chang) ； 黃裕欽(Yuh-Chin T. Huang) 氦氣 ； 氣喘 ； 最大吐氣流量 ； 急促指數 ； 第一秒最大吐氣量 ； Helium ； bronchial asthma ； peak expiratory flow rate ； dyspnea score ； forced expiratory volume in 1st second Mediastinal Cystic Lymphangioma-A Case Report and Literature Review
https://www.tspccm.org.tw/media/3326
My Peak Flow 2.1 free download My Peak Flow tracks and charts readings from peak flow meters and asthma symptoms. Designed to...My Peak Flow 2.1 free download My Peak Flow tracks and charts readings from peak flow meters and asthma symptoms. Designed to...
My Peak Flow tracks and charts readings from peak flow meters and asthma symptoms. Print a comprehensive report for your doctor. Providing your doctor with more information can result in better asthma management. Designed to be used by people with asthma, or carers of one or more children who suffer from asthma. ...
http://3d2f.com/programs/34-377-my-peak-flow-download.shtml
JSB N02 Peak Flow MeterJSB N02 Peak Flow Meter
Buy JSB N02 Peak Flow Meter online from supermedicare.in. Best price, offers and deals for Cpap, Bipap and Oxygen Concentrator in India. It is a breathing aid used to provide an objective measurement of your Peak Expiratory Flow.
https://www.supermedicare.in/home-respiratory-care/JSB-N02-Peak-Flow-Meter
ACSM | ArticlesACSM | Articles
The most accurate test is a spirometry (hand-held electronic device measuring lung function) performed before and after the specific exercise the subject is doing. Since many doctors do not have spirometers in their office, this is not a common test. However, most allergists do have these machines. The test is commonly used by U.S. Olympic Committee sports physiologists to screen athletes for EIB.. Another test that can be done is a peak flow rate, which can be done with an inexpensive hand-held device, to measure the peak expiratory flow rate of the lungs before and after exercise. However, this is not as accurate as a spirometer. In case there is no spirometer or peak flow meter available, the physician may prescribe a treatment (inhaler) for EIB. If that treatment is effective, it usually confirms the diagnosis.. What are the treatments for EIB ...
http://www.acsm.org/public-information/articles/2016/10/07/exercise-induced-bronchospasm-what-is-it-and-who-has-it-
Spirometry Mouthpieces For Spirometers & Peak Flow Meters | Numed HealthcareSpirometry Mouthpieces For Spirometers & Peak Flow Meters | Numed Healthcare
Numed Healthcare offer a comprehensive range of spirometer mouthpieces and bacterial filters from top brands such as Carefusion (Micro Medical) and NDD. The mouthpieces are suitable for use with all leading brands of spirometers and peak flow meters. Prices start from only £9.99.
https://www.numed.co.uk/products/category/spirometry-mouthpieces
Plus itPlus it
Background: Peak flow meter (PFM) is a screening tool for asthma and COPD. The ability of PFM to detect airway obstruction compared to standard spirometer is inadequately studied.. Methods: PEF measurement (Breathometer, Cipla ltd.) and spirometry (Koko) were conducted in 111 subjects (asthma=69, COPD=18, healthy=24) by a well trained technician. Sensitivity and specificity of peak flow meter to detect airway obstruction were studied against spirometry and final clinical diagnosis and cut-off for %predicted was obtained by receiver operating characteristic analysis.. Results: Compared to standard spirometry, PFM had sensitivities of 91% and 75% and specificities of 77% and 91% at cut-offs of 80% predicted and 75% predicted respectively to detect airflow limitation. For predicting confirmed clinical diagnosis of healthy and airway obstruction (asthma/COPD) sensitivity and specificity of standard spirometry and PFM were 83% and 70%; and 80% and 85% with cut-offs of 0.7 and 50% predicted ...
http://erj.ersjournals.com/content/44/Suppl_58/P3814
Peak Flow MeterPeak Flow Meter
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs.
https://myhealth.ucsd.edu/Library/DiseasesConditions/Adult/Allergy/85,P00027
Peak Flow Meter
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs.
http://healthlibrary.palomarhealth.org/Library/DiseasesConditions/Adult/Allergy/85,P00027
Peak Flow Meters / Accessories | Respiratory Care | Southwest MedicalPeak Flow Meters / Accessories | Respiratory Care | Southwest Medical
Peak Flow Meters / Accessories | Respiratory Care | Southwestmedical.com specializes in medical supplies (equipment/products): patient lifts, standing frames, easystand, wheelchair parts & cushions, bathroom lifts and more for the disabled.
https://www.southwestmedical.com/Respiratory-Care/Peak-Flow-Meters-Accessories/619c0
Philips HS755-012 Peak Flow Meter With Warranty| TelemartPhilips HS755-012 Peak Flow Meter With Warranty| Telemart
Phillips is one of the most trusted brands in pakistan with its several appliances making our household livlier! Check out this super-cool Peak Flow Meter which now is available with an official warranty!
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Microlife PF 100 Peak Flow Meter for Spirometry with FEV1Microlife PF 100 Peak Flow Meter for Spirometry with FEV1
This device is used to measure Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) in both children and adults. PEF is the fastest speed air can be blown out of the lungs after inhalation. FEV1 measures the volume after exhaling in 1-second. Peak Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) measurements can tell how well lungs are breathing by monitoring airflow. Doctors can have patients monitor changes in airflow and record the results. The automatic memory stores and provides easy access to the last 240 readings along with the time and date.. ...
http://novatechgadgets.com/mipeak.html
Microlife PF 100 Peak Flow Meter for Spirometry with FEV1 - Hearing HQ
This device is used to measure Peak Expiratory Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) in both children and adults. PEF is the fastest speed air can be blown out of the lungs after inhalation. FEV1 measures the volume after exhaling in 1-second. Peak Flow (PEF) and Forced Expiratory Volume in 1-second (FEV1) measurements can tell how well lungs are breathing by monitoring airflow. Doctors can have patients monitor changes in airflow and record the results. The automatic memory stores and provides easy access to the last 240 readings along with the time and date.. Enter your model numberto make sure this fits ...
https://hearinghq.com.au/product/microlife-pf-100-peak-flow-meter-for-spirometry-with-fev1/
Asthma Action Plan: Red ZoneAsthma Action Plan: Red Zone
Peak expiratory flow less than 50% of your personal best peak flow measurement. To find 50% of your personal best, multiply your personal best measurement by 0.50. For example, if your personal best flow is 400, then 50% of that is 400 times 0.50, which is 200. In this example, a peak expiratory flow less than 200 means you are in the red zone ...
https://www.lmh.org/wellness/health-library/document-viewer/?id=hw161511
Asthma and Teens
Its very common for teens to be in denial about having asthma, and they may stop taking medicines, which can lead to more symptoms and flare-ups. If this happens, you may need to monitor your teens care until he or she is ready to do it alone. Some parents find it helpful to use a peak flow meter (a handheld tool that can be used at home to measure breathing ability) as the final word on whether (and how much) medicine is needed to prevent a flare-up. When peak flow readings drop, its a sign of increasing airway inflammation. The peak flow meter can detect subtle airway inflammation and obstruction, even when someone feels fine. In some cases, it can detect drops in peak flow readings 2 to 3 days before a flare-up occurs, providing plenty of time to treat and prevent it.. Peak flow meters dont lie, so teens cant deny theyre having a problem - and parents are less likely to be seen as bad guys or overprotective, forcing their kids to take medication unnecessarily ...
https://www.rchsd.org/health-articles/asthma-and-teens/?topic=asthma-center
Multimedia - Memorial Health System
Peak Flow Meter A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones. ...
http://mhsystem.staywellsolutionsonline.com/Conditions/COPD/Multimedia/
A One Year Clinical Trial Assessing the Usefulness and Safety of Inhaled Insulin in Diabetics With Asthma - Full Text View -...A One Year Clinical Trial Assessing the Usefulness and Safety of Inhaled Insulin in Diabetics With Asthma - Full Text View -...
Subjects measured peak expiratory flow rate (PEFR) and forced expiratory volume in 1 second (FEV1) twice daily and entered the results in an electronic diary. Daily data were used to calculate the mean PEFR and FEV1 for each week (observed weekly mean and change from baseline in weekly mean). For each subject, the mean weekly morning (and evening) PEFR and FEV1 was defined as the sum of the daily morning (and evening) PEFR (and FEV1) measurements during the week divided by the number of non-missing PEFR (and FEV1) measurements during the week ...
https://clinicaltrials.gov/ct2/show/study/NCT00139659?show_locs=Y
What Are The Symptoms Of Lung Problems? - beatlesocialnetwork.com
Follow these steps to use your peak flow meter:Set the pointer on the gauge of the peak flow meter to 0 (zero).Attach the mouthpiece to the peak flow meter.Stand up to allow yourself to take a deep breath. … Take a deep breath in. … Breathe out as hard and as fast as you can using a huff. … Note the value on the gauge.More items… ...
https://beatlesocialnetwork.com/qa/what-are-the-symptoms-of-lung-problems.html
Your Childs Asthma: Peak Flow Monitoring | Northwestern MedicineYour Childs Asthma: Peak Flow Monitoring | Northwestern Medicine
Asthma symptoms can be monitored by closely watching for early changes or by using a peak flow meter. A peak flow meter is a tool for testing how well your childs lungs are working. It can help warn you of a flare-up, even before there are symptoms. Make sure you know when you and your child should check his or her peak flow. And make sure that you and your child know how to use the meter correctly.
https://encyclopedia.nm.org/Conditions/Asthma/3,88714
Life-threatening asthma, part 2: Strategies for management | Patient Care OnlineLife-threatening asthma, part 2: Strategies for management | Patient Care Online
Abstract: ß-Agonists, administered by metered-dose inhaleror nebulizer, are still the mainstay of therapy for asthma exacerbations.A trial of a subcutaneous ß-agonist should beconsidered in patients who fail to respond to inhaled medications.Levalbuterol may play a role in managing refractoryasthma, particularly in patients with ischemic heart disease orsevere tachycardia. Systemic corticosteroids should be administeredto all patients presenting to the hospital withasthma unless their peak expiratory flow rate (PEFR) orforced expiratory volume in 1 second (FEV1) is at least 80% ofpredicted after 1 hour of treatment; this therapy should be institutedwithin 1 hour of presentation. For patients with severeobstruction, the combined use of an anticholinergic and aß-agonist improves PEFR and FEV1 more than ß-agonistsalone and significantly decreases the risk of hospital admission.(J Respir Dis. 2005;26(6):238-249)
https://www.patientcareonline.com/view/life-threatening-asthma-part-2-strategies-management
Inhaled budesonide plus oral prednisone reduced relapse after discharge from the emergency department for acute asthma | Annals...Inhaled budesonide plus oral prednisone reduced relapse after discharge from the emergency department for acute asthma | Annals...
191 patients 16 to 60 years of age who were treated in the ED for acute asthma and had a peak expiratory flow rate , 80% predicted for sex, age, and height. Patients were excluded if they had received oral or inhaled corticosteroids during the previous week. Follow-up was 94 ...
http://annals.org/aim/article-abstract/2537963/inhaled-budesonide-plus-oral-prednisone-reduced-relapse-after-discharge-from
asthma - Health Blogasthma - Health Blog
All piping children become not asthma in adulthood, but sometimes the asthma persists. In this case, better to heal properly, to live as comfortably as…Read more » ...
http://prohealthblog.com/tag/asthma
SERETIDE Vs FLIXOTIDE In Mild Persistent Asthma (GINAII) - Full Text View - ClinicalTrials.govSERETIDE Vs FLIXOTIDE In Mild Persistent Asthma (GINAII) - Full Text View - ClinicalTrials.gov
Severe exacerbation: needed hospitalization/emergency unit visit. Moderate exacerbation: Needed oral cortico-steroid or adding inhaled Flixotide to maintenance study medicine; decrease in morning or evening peak expiratory flow (PEF) , 30% during ≥ 2 following days from Baseline (Day 0). Mild exacerbation: any night symptoms ≥ 3 consecutive, or night symptoms ≥ 2 consecutive nights in case symptoms have been scored ≥ 2 during at least one night, Day symptoms scored ≥ 2 during ≥ 4 following days, or Day symptoms scored ≥ 3 during ≥ 3 following days, or Day symptoms scored ≥ 4 during ≥ 2 following days, or rescue medication use ≥ 2 occasions per day for ≥ 4 following days, or rescue medication use ≥ 3 occasions per day for ≥ 3 following days, or rescue medication use ≥ 4 occasions per day for ≥ 2 following days, or decrease in morning/evening PEF ,20% during ≥ 2 following days from Baseline (Day 0). Number of total exacerbations and severe, moderate and mild ...
https://clinicaltrials.gov/ct2/show/NCT00455923
NIOSHTIC-2 Publications Search - 00176758 - Clinical and immunologic studies among egg-processing workers with occupational...NIOSHTIC-2 Publications Search - 00176758 - Clinical and immunologic studies among egg-processing workers with occupational...
Immunologic responses to inhaled egg protein in egg processing workers was studied. The subjects were 25 workers from a factory that processed eggs into powdered egg yolk or whole egg and liquid egg white. Procedures included an interview with a physician, physical examination, skin tests, measurement of peak expiratory flow rate (PEFR), and serologic testing. Asthmatic illness was classified in a
https://www.cdc.gov/niosh/nioshtic-2/00176758.html
ViewArticleDetailViewArticleDetail
The aim of this study was to evaluate the cumulative effect of traffic related pollutants on subjects which mainly included traffic police. This evaluation is important to cater to the statistic that occupational asthma is the most common form of lung disease in the world which places the population with high exposure at great risk. We qualify the effect of exposure to pollutants like carbon monoxide, particulate diesel and other gaseous pollutant which can cause interminable harm that demonstrate as migraine, hazy vision, trouble in focus and confusion. They may also be carcinogenic with higher rates of malignancy. The predominance of respiratory complications among the policemen in highly polluted areas is higher than their counterparts. A careful assessment of history and quantification of severity markers and peak expiratory flow rate helps us identify patients who may require intensive immediate care or even hospitalization. The main objective of this work is to analyze the present health ...
http://ijpronline.com/ViewArticleDetail.aspx?ID=12317
Lung IndiaLung India
Noninvasive positive pressure ventilation (NIPPV) delivered by a nasal or face mask is increasingly being used in the management of patients with acute respiratory failure. Total 45 patients (29 males, 16 females) with mean age 68.32 years (range 29 to 82 years) having acute onset hypoxemic and/or hypercapnic respiratory failure managed with NIPPV in a tertiary care center of Armed Forces were studied. Patients with hemodynamic instability, coma and uncooperative patients were excluded from study. Etiology of Acute Respiratory Failure was acute exacerbations of COPD in 29 patients, ARDS-4 patients, severe kyphoscoliosis-2 patients, ILD-4 patients, lung contusion with pneumonia - 1 patient thoracoplasty - 1 patient and difficult weaning in 4 patients. Initial resting arterial blood gases showed mean PaO2 of 61 mmHg (Range 45 to 78 mmHg) mean PaCO2 -75.2 mmHg (range 32 to 127 mmHg) and mean PH-7.26 (range 7.03 to 7.45). Mean IPAP pressure was 14 cmH2O (Range 10 to 20 cmH2O). Mean EPAP was 5.8 ...
http://www.lungindia.com/showstats.asp?sabs=y&issn=0970-2113
BS EN ISO 23747:2007 - Anaesthetic and respiratory equipment. Peak expiratory flow meters for the assessment of pulmonary...BS EN ISO 23747:2007 - Anaesthetic and respiratory equipment. Peak expiratory flow meters for the assessment of pulmonary...
Purchase your copy of BS EN ISO 23747:2007 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available online in electronic and print formats.
https://shop.bsigroup.com/ProductDetail?pid=000000000030136649
Asthma
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones....more ...
http://legacyhealth.staywellsolutionsonline.com/Conditions/Asthma/
Child Peak Flow Meter | Asthma | NCEHChild Peak Flow Meter | Asthma | NCEH
Centers for Disease Control and Prevention (CDC) - National Center of Environmental Health (NCEH) - National Asthma Control Program
https://www.cdc.gov/asthma/asthmadata/child_peak_flow_meter.html
Peak Flow Meters and Supplies - Asthma - Respiratory - Independence Medical - MedicalPeak Flow Meters and Supplies - Asthma - Respiratory - Independence Medical - Medical
We provide high quality medical supplies at the best price. Diabetic supplies, exam table paper rolls, exam gloves, remote patient monitoring devices, and more.
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Vitalograph Peak Flow MeterVitalograph Peak Flow Meter
The dry air in overheated rooms irritates the respiratory system and dries out the mucous membranes. To combat this, protect your health with the correct level of humidity. The humidifier Ultrabreeze starts pre-heating as soon as you turn it on. This acts to destroy germs and bacteria. This function is used to protect your dry mucous membranes. Micro fine nebulization through Ultrasound technology to improve the breathable air. Low-noise and energy-saving Timer for programming the duration of atomisation Additional night light Integrated clock with alarm function Oper... €109.95 Ex Tax: €89.39 ...
https://www.gomobility.ie/living-aids/wellbeing/respiratory-care?product_id=24738
Image: Peak Flow Meter - Merck Manuals Consumer VersionImage: Peak Flow Meter - Merck Manuals Consumer Version
Merck & Co., Inc., Kenilworth, NJ, USA is a global healthcare leader working to help the world be well. From developing new therapies that treat and prevent disease to helping people in need, we are committed to improving health and well-being around the world. The Merck Manual was first published in 1899 as a service to the community. The legacy of this great resource continues as the Merck Manual in the US and Canada and the MSD Manual outside of North America. Learn more about our commitment to Global Medical Knowledge.. ...
http://www.merckmanuals.com/home/multimedia/image/peak%20flow%20meter
DISTRIBUTOR ELECTROMAGNETIC FLOW METERDISTRIBUTOR ELECTROMAGNETIC FLOW METER
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http://www.javains.com/blog/1.html
Peak Expiratory Flow Rates in Healthy Turkish Children Living in ...: Ingenta ConnectPeak Expiratory Flow Rates in Healthy Turkish Children Living in ...: Ingenta Connect
In the evaluation and management of bronchial asthma, simple instruments for measurements of the peak expiratory flow (PEF) rate are needed. The aim of this study was to determine normal PEF values of Turkish children living in Istanbul. This is the largest study conducted in Turkey. In a cross-sectional study, we measured PEF in 2791 healthy schoolchildren (1468 boys and 1323 girls) aged 7-14 years, with a Mini Wright peak flow meter. We entered height, age, and sex into the regression equation. The equation for prediction of PEF in boys was calculated as (3.5 × height [cm]) + (9.2 × age [years]) - 256.5, (p < 0.0001; r = 0.83) and for girls as (3.3 × height [cm]) + (10.2 × age [years]) - 263.7 (p < 0.0001; r = 0.81). We found that PEF values of Turkish children were similar to British and Danish children, but significant differences were noted with Greek, Irish, Mexican American, African-American, and white American children. Our results were significantly lower compared with another study ...
https://www.ingentaconnect.com/content/ocean/aap/2004/00000025/00000005/art00007
Winter air pollution and respiratory function | Occupational & Environmental MedicineWinter air pollution and respiratory function | Occupational & Environmental Medicine
In the paper entitled Acute effects of winter air pollution on respiratory function in schoolchildren in southern England by Peacock et al in this issue,1 the authors extended their earlier investigation of the effects of summertime air pollutant exposure in children from the same area in southern England.2. In their previous study of summertime exposures, the authors reported very small, but statistically significant negative associations between the mass concentration of PM less than 10 μm in aerodynamic diameter (PM10), and forced expiratory volume in 0.75 seconds (FEV0.75) and forced vital capacity (FVC), but no evident associations with ozone (O3) or nitrogen dioxide (NO2). For the wintertime study described in this issue, they relied on peak expiratory flow rate (PEFR) measured with mini-Wright meters provided for each child rather than on FEV0.75 and FVC measured by spirometry, and reported no clear PEFR associations with any of the measured air pollutants (PM10, NO2, O3, SO2, and ...
http://oem.bmj.com/content/60/2/81
Beclomethasone aerosol in childhood asthma | Archives of Disease in ChildhoodBeclomethasone aerosol in childhood asthma | Archives of Disease in Childhood
Twenty children have been treated with the steroid aerosol beclomethasone, half of them in an open trial and the other half in a controlled cross-over trial. Children were assessed by means of clinical examination, diary records, and twice-daily peak flow rate measurements made at home.. After 1 to 2 months all but 1 of the 16 children who were initially taking systemic steroids or corticotrophin were weaned off these drugs. The cross-over trial showed a significant improvement on the active drug, in terms of diary score, bronchodilator use, steroid dose, and twice-daily peak expiratory flow measurements. Adrenal function was entirely normal after 1 and 3 months on the drug as measured by morning cortisol levels and the response to tetracosactrin. There were no side effects, apart from the reappearance of hay fever or eczema in some children previously on systemic steroids. Follow-up for a mean of 4·5 ± 2·2 (SD) months showed the continuing efficacy of beclomethasone, though an increase in ...
http://adc.bmj.com/content/48/9/665
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Small crusher for sale in pakistan. Second Hand Stone Jaw Crusher For Sale In Pakistan used jaw crushers with price in pakistan plant and jaw Get Now Health Hazards and Socioeconomic Small crusher for sale in pakistan. Second Hand Stone Jaw Crusher For Sale In Pakistan used jaw crushers with price in pakistan plant and jaw Get Now Health Hazards and Socioeconomic Effects of Stone Crushing on Its Workers A Case Study of Sargodha Pakistan Stone crushing industry is a on Peak Expiratory Flow Rate among Stone Crushers of Quetta Pakistan Service Online ...
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Small crusher for sale in pakistan. Second Hand Stone Jaw Crusher For Sale In Pakistan,, used jaw crushers with price in pakistan plant,and jaw Get Now Health Hazards and Socioeconomic Effects of Stone Crushing on Its Workers A Case Study of Sargodha, Pakistan Stone crushing industry is a on Peak Expiratory Flow Rate among Stone Crushers of Dapatkan Harga ...
https://rsakopvannh.nl/2012-Apr-11/167/
October 16, 2014 | enews | SCCM eNewsletter - SCCM
Ventilator-induced lung injury (VILI) exacerbates acute lung injury by causing additional atelectrauma and volutrauma at the microanatomical level. Kollisch-Singule and colleagues designed a randomized, nonblinded laboratory animal study to investigate alveolar microstrain of subpleural alveoli during dynamic inflation and deflation. The authors hypothesized that airway pressure release ventilation (APRV), with a prolonged plateau pressure (Phigh) and minimal time at end-expiratory release pressure (Plow), would minimize microstrain.. The authors found that an APRV termination of peak expiratory flow rate to peak expiratory flow rate ratio of 75% resulted in significantly less alveolar microstrain and improved alveolar recruitment. The methodology established in this study will likely prove useful in future large animal and clinical studies designed to investigate the optimal mechanical breath profiles for the prevention of VILI.. Read the full Concise Critical Appraisal by logging into the SCCM ...
http://enews.sccm.me/enews/october-16-2014/
Peak expiratory flow rates before and after exercise in schoolchildren | Archives of Disease in ChildhoodPeak expiratory flow rates before and after exercise in schoolchildren | Archives of Disease in Childhood
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Centers RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.. ...
https://adc.bmj.com/content/49/12/923.info
Florida Center For Allergy & Asthma Care - FCAAC » GlossaryFlorida Center For Allergy & Asthma Care - FCAAC » Glossary
A peak flow meter for asthma is a handheld meter that measures how well air flows out of the lungs. Measuring your peak flow using this device is an important part of managing your asthma symptoms and preventing an asthma attack. That is because sometimes you may feel your breathing is fine, but when you measure it with a peak flow meter, you find your lung function is slightly decreased. A PFM can be used to:. • Determine the severity of your asthma. • Check your response to treatment during an acute asthma episode. • Monitor progress in treatment of chronic asthma and provide information for any changes in your therapy. • Detect worsening lung function and avoid a possible serious asthma flare-up. A peak flow meter can help you and your allergist evaluate how severe your asthma is at any point in time. With a peak flow meter, you can often see a drop in your readings even before your symptoms (like coughing or wheezing) get worse. Decreases in peak flow may show that you need to ...
http://florida-allergy.com/glossary/?filter=p
Brittle asthma - WikipediaBrittle asthma - Wikipedia
Brittle asthma is a type of asthma distinguishable from other forms by recurrent, severe attacks. There are two subtypes divided by symptoms: Type 1 and Type 2, depending on the stability of the patients maximum speed of expiration, or peak expiratory flow rate (PEFR). Type 1 is characterized by sustained, chronic variability of PEFR, while type 2 is distinguished by sudden unpredictable drops in PEFR where asthma symptoms are otherwise well controlled and the function of the lungs is not substantially impaired. Brittle asthma is one of the unstable subtypes of difficult asthma, a term used to characterize the less than 5% of asthma cases that do not respond to maximal inhaled treatment, including high doses of corticosteroids combined with additional therapies such as long-acting beta-2 agonists. The 2005 Oxford Textbook of Medicine distinguishes type 1 brittle asthma by persistent daily chaotic variability in peak flow (usually greater than 40 per cent diurnal variation in PEFR more than ...
https://en.wikipedia.org/wiki/Brittle_asthma
How to Use Your Asthma Equipment - AllergyBuyersClubHow to Use Your Asthma Equipment - AllergyBuyersClub
A peak flow meter could actually save your life and ward off an asthma attack by allowing you to respond quickly to asthma flare-ups such as coughing, wheezing, and mucus production. These devices were created to help you manage your asthma, especially during physical activity. Peak flow meters measure daily variations in your breathing letting you know that your body has reached its limit by the number indicated on the meter. If the number is lower than your optimal amount, you should stop and rest, and/or take medication, depending on your doctors orders. Your doctor will also be able to tell whether your asthma medication is working based on the readings of the meter. Many people take daily asthma medication along with using their peak flow meter on a daily basis. Peak flow meters are hand-held and portable, and give you the confidence of being able to monitor your asthma symptoms before they start. The higher the number, the healthier you are, so you know that your asthma management plan is ...
https://www.allergybuyersclub.com/learning/asthma-equipment.html
PIR-1010 ultrasonic multi-functional flow meters - RPA LLC ECOHIMPRIBORPIR-1010 ultrasonic multi-functional flow meters - RPA LLC ECOHIMPRIBOR
Resolving the issue of accurate measurement of gas flow in the pipeline is one of the most important components of the effective management of gas enterprises. Invention of ultrasonic flow meters was a technological breakthrough. Currently this is one of the dynamically developing technology of gas flow metering in pipes. Flow meters effectively work under a pressure of 4 bar and more, measuring flows up to 40 m/sec in pipes from 75 to 1,500 mm in diameter; flow meters are applicable for fiscal and real time metering of natural, process gas and air flow rate. Flow meters can also be used for flow rate measurement of multiphase media (gas plus liquid phase) ensuring stable measurement in the presence of up 30% liquid phase and measuring its content within the accuracy of ~5%.. 1010 flow meters dont have moving parts and are absolutely not susceptible to the influence of gas flow. Flow meter testing time: 4 years.. We are producing 1, 2, 3 and 4 ray flow meters with high, enhanced and ultra-high ...
http://ecohimpribor.ru/en/produkciya/rashodomery-gaza-i-zhidkosti/ultrazvukovye-mnogofunkcionalnye-rashodomery-pir-1010/
LC Series Oval Gear Type Flow Meter Oval Positive Displacement Flow Meter With StrainerLC Series Oval Gear Type Flow Meter Oval Positive Displacement Flow Meter With Strainer
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http://www.fluid-meter.com/china-lc_series_oval_gear_type_flow_meter_oval_positive_displacement_flow_meter_with_strainer-12905516.html
Asthma - Integrative PediatricsAsthma - Integrative Pediatrics
A peak flow meter is a simple device to measure how quickly you can move air out of your lungs. It can help you see if an attack is coming, sometimes even before any symptoms appear. Peak flow measurements can help show when medication is needed, or other action needs to be taken. Peak flow values of 50-80% of a specific persons best results are a sign of a moderate asthma attack, while values below 50% are a sign of a severe attack. Peak Flow Meters are used in conjunction with Asthma Action Plans, which is your personal plan for asthma management outlined by your doctor ...
http://www.integrativepediatricsonline.com/asthma.html
Breathlessness in elderly individuals is related to low lung function and reversibility of airway obstruction | European...Breathlessness in elderly individuals is related to low lung function and reversibility of airway obstruction | European...
The perception of breathlessness is a subject-related factor which is linked to respiratory disease, cardiac disease and overweight. We studied the distribution of breathlessness, its association with respiratory disease, cardiac disease and overweight, as well as its association with lung function, reversibility of airway obstruction (reversibility) and peak expiratory flow (PEF) variability in an elderly population. Data on breathlessness (rated with Borg scale), lung function, reversibility, PEF variability, respiratory symptoms, cardiac disease and overweight were collected in a random sample of 210 elderly (,55 yrs old) who participated in a physical fitness test. Individuals with a Borg score ,0 were taken to have breathlessness. Subjects with a Borg score ,0 (n=50, 24%) were three to five times more likely to have a low lung function and large reversibility than subjects with a Borg score of zero, independent of the presence of respiratory symptoms, cardiac disease or overweight, ...
https://erj.ersjournals.com/content/12/4/805?ijkey=cdefe87a45a56f8be340d4db42af15a732490348&keytype2=tf_ipsecsha
Occupational Asthma Reference: Differentiating occupational asthmatics from non-occupational asthmatics and irritant-exposed...Occupational Asthma Reference: Differentiating occupational asthmatics from non-occupational asthmatics and irritant-exposed...
When the mean PEF on workdays (starting with the first reading at work and continuing till the last reading before work on the next day, i.e. day interpreted)is compared with the mean PEF on days away from exposure, a difference of 16 litres/min is outside the 95% CI for readings taken in non-asthmatics exposed to high levels of a respiratory irritant (grain). Taking a mean rest-work PEF >16 litres/min achieved a sensitivity of 68% and specificity 95% in indeendently diagnosed occupational asthmatics and asthmatic controls. An increase in diurnal variation on workdays of >7% (the upper 95% CI for aasthmatic controils) had a sensitivity of only 27% for the diagnosis of OA. The difference between maximum PEF on workdays and minimum PEF on rest days (as reported in Cote J, Kennedy S, ChanYeung M , Quantitative Versus Qualitative Analysis Of Peak Expiratory Flow In Occupational Asthma, Thorax, 1993; 48:48-51) had a sensitivity of ...
http://occupationalasthma.com/occupational_asthma_viewreference.aspx?id=4814
A study of propensity for development of bronchial asthma in preadolescents with family history of asthma by spirometry and...
TY - JOUR. T1 - A study of propensity for development of bronchial asthma in preadolescents with family history of asthma by spirometry and body mass index. AU - Bhattacharyya, S.. AU - Panchami, R.. AU - Ganaraja, B.. AU - Bhat Ramesh, M.. PY - 2012/1/1. Y1 - 2012/1/1. N2 - Hereditary occurrence of Bronchial asthma has been long been postulated and several studies gave useful information in support of this. Therefore family history of hypersensitivity and asthma is an important factor in the prediction, diagnosis, prevention and/or treatment of Asthma. We studied the young school children (10-11 years; n=150 in groups of 50 each) without any history of Bronchial asthma and those with history of bronchial asthma and those having parents with asthma, in three separate groups. The parameters studied were Forced Vital capacity (FVC), FEV1 (Timed vital capacity), FEV1/FVC Ratio, Peak Expiratory Flow Rate measurements and Correlated with BMI. Comparison of the parameters by ANOVA revealed that there ...
https://manipal.pure.elsevier.com/en/publications/a-study-of-propensity-for-development-of-bronchial-asthma-in-prea
Structured pharmaceutical care improves the health-related quality of life of patients with asthma | Journal of Pharmaceutical...
Asthma as a chronic health condition can be controlled when in addition to clinical care, adequate education and support is provided to enhance self-management. Like many other chronic health conditions improved self-management positively impacts the health-related quality of life (HRQoL). It can therefore be said that a well-structured pharmaceutical care delivery that addresses the issues related to patient education and support towards self-management stands a good chance of positively impacting asthma control. This study evaluated the impact of a structured pharmaceutical care delivery on asthma control. A prospective pre-/post- intervention study of a single cohort of 77 adult out-patients visiting specialist asthma clinics in Ghana were assessed for HRQoL and peak expiratory flow rates (PEFR) one month after pharmaceutical care intervention. Pharmaceutical care intervention covered education on the health condition, pharmacotherapy and self-management issues as well as correction of inhaler-use
https://joppp.biomedcentral.com/articles/10.1186/s40545-017-0097-7/tables/2
Womens Health and Education Center (WHEC) - Medical Disorders and Pregnancy - Asthma In Pregnancy
Asthma represents a broad spectrum of clinical illness ranging from mild wheezing to severe broncho-constriction. It may present with a cough, a sensation of chest tightness or discomfort, dyspnea, or audible wheezing. When asking the patients history, remember to ask how frequently she uses asthma medication, whether she has limitations on activity or fatigues easily, what her exercise tolerance is, whether there are factors that exacerbate the asthma, and how complaint she is with medication. Acute exacerbation should also prompt you to ask about viral and respiratory infections. Physical examination of the pregnant asthmatic during an acute exacerbation should include assessment of respiratory effort and rate, perfusion status, a qualitative assessment of airflow, and signs of infection. Reversible broncho-constriction manifests itself with restriction of airflow in the large to medium bronchi, resulting in a decrease in peak expiratory flow rate (PEFR), measured with a hand-held peak flow ...
http://womenshealthsection.com/content/obsmd/obsm008.php3
Withdrawal of inhaled corticosteroids in people with COPD in primary care: a randomised controlled trial | Respiratory Research...Withdrawal of inhaled corticosteroids in people with COPD in primary care: a randomised controlled trial | Respiratory Research...
Guidelines recommend inhaled corticosteroids (ICS) for patients with severe chronic obstructive pulmonary disease (COPD). Most COPD patients are managed in primary care and receive ICS long-term and irrespective of severity. The effect of withdrawing ICS from COPD patients in primary care is unknown. In a pragmatic randomised, double-blind, placebo-controlled trial in 31 practices, 260 COPD patients stopped their usual ICS (median duration of use 8 years) and were allocated to 500 mcg fluticasone propionate twice daily (n = 128), or placebo (n = 132). Follow-up assessments took place at three monthly intervals for a year at the patients practice. Our primary outcome was COPD exacerbation frequency. Secondary outcomes were time to first COPD exacerbation, reported symptoms, peak expiratory flow rate and reliever inhaler use, and lung function and health related quality of life. In patients randomised to placebo, COPD exacerbation risk over one year was RR: 1.11 (CI: 0.91-1.36). Patients taking placebo
https://respiratory-research.biomedcentral.com/articles/10.1186/1465-9921-8-93/metrics
Withdrawal of inhaled corticosteroids in people with COPD in primary care: a randomised controlled trial | Respiratory Research...Withdrawal of inhaled corticosteroids in people with COPD in primary care: a randomised controlled trial | Respiratory Research...
Guidelines recommend inhaled corticosteroids (ICS) for patients with severe chronic obstructive pulmonary disease (COPD). Most COPD patients are managed in primary care and receive ICS long-term and irrespective of severity. The effect of withdrawing ICS from COPD patients in primary care is unknown. In a pragmatic randomised, double-blind, placebo-controlled trial in 31 practices, 260 COPD patients stopped their usual ICS (median duration of use 8 years) and were allocated to 500 mcg fluticasone propionate twice daily (n = 128), or placebo (n = 132). Follow-up assessments took place at three monthly intervals for a year at the patients practice. Our primary outcome was COPD exacerbation frequency. Secondary outcomes were time to first COPD exacerbation, reported symptoms, peak expiratory flow rate and reliever inhaler use, and lung function and health related quality of life. In patients randomised to placebo, COPD exacerbation risk over one year was RR: 1.11 (CI: 0.91-1.36). Patients taking placebo
https://respiratory-research.biomedcentral.com/articles/10.1186/1465-9921-8-93
asthma treatment Archives - Health Blogasthma treatment Archives - Health Blog
The peak expiratory flow rate is a measure of the breath when air soon resumes bronchus. Simple, easy and fast, this measure is necessary to follow the evolution of the disease and adapt the treatment. Regular measurements can also predict a crisis.. The dynamics of the breath is an essential parameter in asthma because the reduction of the calibre of the bronchi characterizing the asthma attack must be quantifiable right away. The comparative measurement of respiratory volumes as well as respiratory force in crisis and in normal times is therefore a necessity for monitoring and the adaptation of an asthma treatment.. ...
http://prohealthblog.com/tag/asthma-treatment
Comparison of the effects of continuous intrapleural vs epidural administration of 0.5% bupivacaine on pain, metabolic response...
Twenty patients undergoing elective cholecystectomy were prospectively randomised to receive either intrapleural (bolus 20 ml followed by 10 ml/h) or thoracic epidural (bolus 9 ml followed by 5 ml/h) bupivacaine 0.5% for 8 h postoperatively to assess the effect of these two techniques on pain, pulmonary function and the surgical stress response. As assessed by the visual analogue scale (VAS), both groups received good but not total pain relief. Both groups had a 50% reduction in forced expiratory volume (FEV1), forced vital capacity (FVC) and peak expiratory flow rate (PEFR) after operation, and there was no observed effect on the stress response as measured by plasma glucose and cortisol. It is concluded that while both techniques provide good analgesia, the degree and extent of nerve blockade are not sufficient to affect the afferent neurogenic stimuli responsible for the observed effects on pulmonary function and the stress response ...
https://research.regionh.dk/da/publications/comparison-of-the-effects-of-continuous-intrapleural-vs-epidural-administration-of-05-bupivacaine-on-pain-metabolic-response-and-pulmonary-function-following-cholecystectomy
Quality of spirometry test performance in children and adolescents: Experience in a large field study<...
TY - JOUR. T1 - Quality of spirometry test performance in children and adolescents. T2 - Experience in a large field study. AU - Enright, P. L.. AU - Linn, W. S.. AU - Avol, E. L.. AU - Margolis, Helene G. AU - Gong H., Jr. AU - Peters, J. M.. PY - 2000. Y1 - 2000. N2 - Study objective: To determine the ability of children and adolescents to meet the American Thoracic Society (ATS) goals for spirometry quality that were based on results from adults. Design: Observational. Participants: More than 4,000 public school students, ages 9 to 18 years. Measurements: Spirometry was performed annually for 3 years, with the recording of maneuver quality measures of forced expiratory time, end-of-test volume, back-extrapolated volume, and time to peak expiratory flow (PEFT), and the recording of differences between best and second-best FVC, FEV1, and peak expiratory flow (PEF) values. Results: Regression analyses showed significant influences of participant age, gender, ethnicity, size, clinical status, and ...
https://ucdavis.pure.elsevier.com/en/publications/quality-of-spirometry-test-performance-in-children-and-adolescent
Use of Flutter VRP1 in the management of patients with steroid-dependent asthma -ORCAUse of Flutter VRP1 in the management of patients with steroid-dependent asthma -ORCA
We have assessed a new positive expiratory pressure device, the Flutter VRP1, in 20 patients with moderately severe asthma. Patients were studied for an initial 1-week run-in period, followed by 2 weeks of the flutter device in one of which the ball-bearing was removed from the bowl. Peak expiratory flow rates, salbutamol inhaler requirements and visual analogue scores were recorded daily. Ease of sputum expectoration showed a significant improvement after 6 days of the flutter device, but there were no differences in objective measurements of lung function nor in salbutamol use. The device may be a useful adjunct to asthma therapy.. ...
http://orca-mwe.cf.ac.uk/92964/
Piusi K200 Oil Flow Meter & Digital Fuel Flow Meter | CTSPiusi K200 Oil Flow Meter & Digital Fuel Flow Meter | CTS
The Piusi K200 digital fuel flow meter is designed to measure the dispensing of diesel, lubrication oil, grease and anti-freeze at a maximum flow rate of 2.8lpm. This oval gear fuel flow meter combines high levels of accuracy with low pressure losses, and is compact in design and easy to install. The Piusi K200 electronic grease, diesel and oil flow meter is ideal for industrial applications where fluid delivery control is required. It can be installed in stationary systems on fluid transfer and distribution lines, and in mobile applications as an accessory for delivery valves and guns.. ...
https://www.centretank.com/products/detail/piusi-k200-digital-flow-meter
Intelligent Flow Meter Market worth $7098.79 Million by 2020, at a CAGR of 5.72%: MarketsandMarketsIntelligent Flow Meter Market worth $7098.79 Million by 2020, at a CAGR of 5.72%: MarketsandMarkets
http://www.marketsandmarkets.com/Market-Reports/intelligent-flow-meter-market-53333547.html. Early buyers will receive 10% customization on this report.. Inquiry Before Buying @ http://www.marketsandmarkets.com/Enquiry_Before_Buying.asp?id=53333547. The intelligent flow meter market incorporates measurement products used for measuring fluidic phenomenon in wide ranges of industrial applications. Intelligent flow meter is widely used in water & wastewater, oil & gas, food& beverage, chemicals, power generation, metals & mining, pulp & paper, pharmaceuticals & other. Global market for intelligent flow meter market is expected to reach $7098.79 million in 2020 at a CAGR of 5.72% calculated from 2014 to 2020.. The report segments the intelligent flow meter market on the basis of the different types, technology, applications and geographies. Further, it contains revenue forecasting and analyzes the trends in the market. The geographical analysis contains the in-depth classification of Americas, ...
https://pitchengine.com/pitches/167d8ce8-2331-405c-8b16-f95c65eed5d3
Health and Medical Sources
Asthma (from the Greek άσθμα, sthma, panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic ...
http://healthandmedicalsources.com/?action=asthma
Chemical Life: November 2011Chemical Life: November 2011
Asthma (from the Greek άσθμα, ásthma, panting) is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm.Symptoms include wheezing, coughing, chest tightness, and shortness of breath.Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1),and peak expiratory flow rate.Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic ...
http://wethechemist.blogspot.com/2011/11/
The Prehospital Use of Albuterol Inhalation Treatments<...
TY - JOUR. T1 - The Prehospital Use of Albuterol Inhalation Treatments. AU - Vonderohe, Eric A.. AU - Jones, James H.. AU - McGrath, Roland B.. AU - Bell, Leon H.. PY - 1991/9. Y1 - 1991/9. N2 - The use of bronch odilators in the prehospital EMS setting is common. This study examined the safety of the administration of 2.5 mg albuterol using a hand-held nebulizer for the treatment of such patients. A total of 55 patients were included. Following treatment, peak expiratory flow rates (PEFR) increased a mean of 27 L/min, ventilatory rate decreased four breaths/min, heart rate decreased slightly, and systolic blood pressure increased 10 mmHg. Five of the 53 patients in whom cardiac rhythm was monitored, had premature ventricular complexes prior to treatment; only one did following therapy. Breath sounds improved in 61 % and were unchanged in 39%. Breathing was reported by the patient as improved in 51 of the 53 (93%) and only one felt worse. Adverse reactions were reported in 15 %, but none were ...
https://indiana.pure.elsevier.com/en/publications/the-prehospital-use-of-albuterol-inhalation-treatments
Asthma « HomeopathyAsthma « Homeopathy
Asthma is thought to be caused by a combination of genetic and environmental factors. Its diagnosis is usually based on the pattern of symptoms, response to therapy over time, and spirometry. It is clinically classified according to the frequency of symptoms, forced expiratory volume in one second (FEV1), and peak expiratory flow rate.. ...
http://wonderclub.com/homeopathy/category/ailments/asthma/
Asthma - Nebraska Medicine
A peak flow meter for asthma is like a thermometer for a fever - it helps you monitor whats going on inside your lungs by measuring airflow out of the lungs. The meter can tell you if your airways are narrowing well before asthma symptoms begin. Learn how to use a peak flow meter, how to find your personal best, and how to set your peak flow zones....more ...
http://nebraskamedical.staywellsolutionsonline.com/Conditions/Asthma/
Current clinical diagnostic tests for asthma<...Current clinical diagnostic tests for asthma<...
TY - CHAP. T1 - Current clinical diagnostic tests for asthma. AU - Shah, Shiwan. AU - Sharma, Gulshan. PY - 2014. Y1 - 2014. N2 - Asthma involves variable airflow obstruction in both large and small airways. The physiological consequences of obstruction include increased airway resistance and decreased expiratory flow rates, which lead to air trapping and dynamic hyperinflation. This chapter reviews current methods for pulmonary function testing to detect these physiological changes for both diagnosis and monitoring.. AB - Asthma involves variable airflow obstruction in both large and small airways. The physiological consequences of obstruction include increased airway resistance and decreased expiratory flow rates, which lead to air trapping and dynamic hyperinflation. This chapter reviews current methods for pulmonary function testing to detect these physiological changes for both diagnosis and monitoring.. KW - Airway hyperresponsiveness. KW - Bronchodilator reversibility. KW - ...
https://researchexperts.utmb.edu/en/publications/current-clinical-diagnostic-tests-for-asthma
Prodigy - Clarity InformaticsProdigy - Clarity Informatics
One systematic review (search date 2002, 22 crossover randomized controlled trials [RCTs] and eight parallel-group RCTs) examined regular versus as-required use of short-acting beta2-agonists in asthma control. Most studies did not allow concomitant use of inhaled corticosteroids, and only data from the crossover studies were suitable for pooling. The review found no difference in morning peak flow rates, but regular use improved evening peak flow rates, reduced diurnal variation, and reduced the need for reliever medication. However, the clinical relevance of these results is uncertain, because exacerbation rates, and quality-of-life scores did not differ and one RCT (n = 117) showed better symptom control over 24 hours with as-required use than with regular use. In some studies, regular use was associated with deterioration of airway responsiveness after stopping medication, increased allergen-induced bronchoconstriction, and tremor [Rodolfo et al, 2005 ...
https://clarity.co.uk/prodigy/
Magnetic Flow meters - sas engineeringMagnetic Flow meters - sas engineering
A Magnetic flow meter can be used to measure any conducting liquid. Since there are no obstructions in the tube there is no pressure drop and the flow rate of a liquid with impurities too can be measured as long as it is conducting. This type of flow meter has no moving parts and is of high accuracy. These flow meters can be used in explosive environments as well and are highly durable.. ...
http://www.sasengineering.lk/magnetic-flow-meters/
Working Principles and Advantages of Using Variable Area Flow Meters | megaeDWorking Principles and Advantages of Using Variable Area Flow Meters | megaeD
In various industrial applications, variable area flow meters measure the volumetric flow of liquid and gases. Each flow meter consists of a mobile float and a conical measuring tube. A variable area flow meter works at constant pressure and the...
https://www.megaedd.com/2018/10/24/working-principles-and-advantages-of-using-variable-area-flow-meters/
Static Residential Ultrasonic Flow Meters Brass Sensor Body Size 1/2 - 2Static Residential Ultrasonic Flow Meters Brass Sensor Body Size 1/2 - 2
High quality Static Residential Ultrasonic Flow Meters Brass Sensor Body Size 1/2 - 2 from China, Chinas leading magnetic flowmeter product, with strict quality control water flow meter factories, producing high quality water flow meter products.
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Daniel 3418 Eight-Path Gas Ultrasonic Flow MeterDaniel 3418 Eight-Path Gas Ultrasonic Flow Meter
The 3418 combines the power of two interlocked 4-path British Gas design meters in one flow meter body. The second set of chords is the mirror image of the first, which allows the meter to cancel out the effects of swirl and cross flow. The 3418 Flow Meter boasts a 0.5 OIML accuracy class and requires only five diameters of straight run and no flow conditioner ...
https://www.controlsouthern.com/products/measurement-instrumentation/flow/ultrasonic/daniel-3418-eight-path-gas-ultrasonic-flow-meter/
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Plus it
Our study shows that guided self management reduced by half or more the number of incidents caused by asthma when compared with traditional treatment. The difference became evident early during the follow up and increased during the study year. Patients with severe asthma were not included because most patients with severe asthma already have a peak flow meter and do practise some kind of self management. As a consequence hospital admissions were few in both study groups.. Antibiotics were used significantly more often in the traditional treatment group than in the self management group, suggesting that during exacerbations a false diagnosis of bacterial infection is easily made, leading to unnecessary use of antibiotics. Compared with viral infections, the role of bacterial infections is minimal in exacerbations of asthma.15 16 The early introduction of anti-inflammatory treatment during exacerbations in our self management group probably reduced useless antibiotic treatment.. The usefulness of ...
http://www.bmj.com/content/312/7033/748
Asthma - Smyrna Pulmonary and Sleep AssociatesAsthma - Smyrna Pulmonary and Sleep Associates
Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.t could cause minimal symptoms to severe asthma attack requiring emergency care.. Asthma cant be cured, but its symptoms can be controlled. Because asthma often changes over time, its important that you work with your doctor to track your signs and symptoms and adjust treatment as needed. Your physician can do pulmonary function test or spirometry to evaluate lung function.. Usual treatment includes avoiding allergens which exacerbate symptoms, use of inhalers and oral medication. Peak flow meter is a small device you can keep at home to monitor lung function and seek help if there is asignificant decline in lung function.. ...
http://tnsleepteam.com/pulmonary/asthma/
Living with Asthma - Respiratory Health AssociationLiving with Asthma - Respiratory Health Association
This type of medication is taken daily (even if you are not experiencing symptoms) and works to reduce your airway inflammation and mucus production. This makes your airways less sensitive to triggers and prevents asthma flare-ups before they happen. Not everyone with asthma needs a long-term control medication. Your healthcare provider will determine your asthma severity and whether you need one.. There are several different asthma medication delivery systems. If you take inhaled medicines, you should practice using your inhaler at your health care providers office. If you take long-term control medicines, take them daily as your health care provider prescribes. Your health care provider may also advise you to use a peak flow meter to measure and record how well your lungs are working.. Every time you use an inhaler, it is important to also use a spacer or holding chamber. This device helps get more medication into the lungs. RHA provides a free Monaghan Z Stat Anti-Static Valved Holding ...
https://resphealth.org/healthy-lungs/asthma/living-with-asthma/
Asthma: Identifying Your Triggers | HealthLink BCAsthma: Identifying Your Triggers | HealthLink BC
Monitor your lung function. Check yourself for asthma symptoms. Watch for things like being short of breath, having chest tightness, coughing, and wheezing. Also notice if symptoms wake you up at night or if you get tired quickly when you exercise. If your doctor recommends it, measure your peak expiratory flow (PEF). A trigger may not always cause symptoms. But it can still narrow your bronchial tubes, which makes your lungs work harder. To identify triggers that do not always cause immediate symptoms, you can measure your PEF throughout the day. PEF will drop when your bronchial tubes narrow, so your PEF will drop when you are near things that trigger symptoms ...
https://www.healthlinkbc.ca/health-topics/aa6768
BiofeedbackBiofeedback
2003). "Heart rate variability biofeedback increases baroreflex gain and peak expiratory flow". Psychosomatic Medicine. 65 (5 ... The ECG method is more accurate than the PPG method in measuring heart rate variability. Biofeedback therapists use heart rate ... Rheoencephalography (REG), or brain blood flow biofeedback, is a biofeedback technique of a conscious control of blood flow. An ... Another rhythm in heart rate is caused by respiration (respiratory sinus arrhythmia), such that heart rate rises during ...
https://en.wikipedia.org/wiki/Biofeedback
Peak expiratory flowPeak expiratory flow
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR), is a person's maximum speed of expiration, as ... Peak expiratory flow is typically measured in units of liters per minute (L/min). Peak flow readings are higher when patients ... It is important to use the same peak flow meter every time. To interpret the significance of peak expiratory flow measurements ... Wikimedia Commons has media related to Peak expiratory flow. National Asthma Council of Australia Estimated Peak Expiratory ...
https://en.wikipedia.org/wiki/Peak_expiratory_flow
Menstrual migraineMenstrual migraine
... and the peak expiratory flow rate (PMA may cause the PEF to be lowered in the premenstrual period). It is helpful in making a ... diagnosis to keep a diary of symptoms and peak expiratory flow (PEF) rates. Raynaud's disease: is a circulatory disorder in ... become narrower reducing blood flow. This causes the extremities to become numb and to be cooler than the core body temperature ...
https://en.wikipedia.org/wiki/Menstrual_migraine
AsthmaAsthma
... difference in peak expiratory flow rate on at least three days in a week for at least two weeks, a ≥20% improvement of peak ... decrease in peak flow following exposure to a trigger. Testing peak expiratory flow is more variable than spirometry, however, ... In a mild exacerbation the peak expiratory flow rate (PEFR) is ≥200 L/min, or ≥50% of the predicted best. Moderate is defined ... and peak expiratory flow rate. It may also be classified as atopic or non-atopic, where atopy refers to a predisposition toward ...
https://en.wikipedia.org/wiki/Asthma
Dust stormDust storm
"Effects of ambient particulate matter on peak expiratory flow rates and respiratory symptoms of asthmatics during Asian dust ...
https://en.wikipedia.org/wiki/Dust_storm
Exercise-induced bronchoconstrictionExercise-induced bronchoconstriction
Measurement of airflow, such as peak expiratory flow rates, which can be done inexpensively on the track or sideline, may prove ... It might be expected that people with E.I.B. would present with shortness of breath, and/or an elevated respiratory rate and ... Similarly, examination may reveal wheezing and prolonged expiratory phase, or may be quite normal. Consequently, a potential ... compared to a national asthma rate of eight to ten percent, whilst a study by the United States Olympic Committee in 2000 found ...
https://en.wikipedia.org/wiki/Exercise-induced_bronchoconstriction
Occupational asthmaOccupational asthma
Peak expiratory flow rate (PEFR) is a hand held device which measures how fast a person can exhale and is a reliable test for ... "Statement on self-monitoring of peak expiratory flows in the investigation of occupational asthma. Subcommittee on Occupational ... It involves measuring the forced expiratory volume in 1 second (FEV-1) of the patient before and after exposure to methacholine ...
https://en.wikipedia.org/wiki/Occupational_asthma
WheezeWheeze
The presence of expiratory phase wheezing signifies that the patient's peak expiratory flow rate is less than 50% of normal. ... Wheezes heard at the end of both expiratory and inspiratory phases usually signify the periodic opening of deflated alveoli, as ... Biphasic stridor (occurring during both the inspiratory and expiratory phases) indicates narrowing at the level of the glottis ... Bronchiolar disease usually causes wheezing that occurs in the expiratory phase of respiration. As a rule, extrathoracic airway ...
https://en.wikipedia.org/wiki/Wheeze
Brittle asthmaBrittle asthma
... or peak expiratory flow rate (PEFR). Type 1 is characterized by a maintained wide PEF variability despite considerable medical ... The 2005 Oxford Textbook of Medicine distinguishes type 1 brittle asthma by "persistent daily chaotic variability in peak flow ...
https://en.wikipedia.org/wiki/Brittle_asthma
Asthma-related microbesAsthma-related microbes
... of asthma exacerbations that were associated with reduced peak expiratory flow rates and wheezing were due to viral upper ... resulting in a decrease in expiratory flow rates and an increase in airways hyper-responsiveness in non-asthmatic individuals. ... At 37 °C virus replication rate falls to 10% to 50% of optimum. This may be the major reason why rhinoviruses can replicate ... respiratory tract infections (URIs). High rates of asthma attacks due to rhinovirus infection are also found in adults. It ...
https://en.wikipedia.org/wiki/Asthma-related_microbes
MEFMEF
Maximal expiratory flow, another name for peak expiratory flow in spirometry Medial eye fields Metro Ethernet Forum Modernized ... e-File (MeF), an electronic system for filing U.S. income taxes Modified Energy Factor (Energy Star Rating Value, US Department ...
https://en.wikipedia.org/wiki/MEF
Acute severe asthmaAcute severe asthma
The peak expiratory flow can be measured at the bedside; in acute severe asthma, the flow is less than 50% of a person's normal ... the respiratory rate may be elevated (more than 25 breaths per minute), and the heart rate may be rapid (110 beats per minute ... and also test using a peak expiratory flow and an oxygen saturation. Status asthmaticus can be misdiagnosed when wheezing ... Very severe acute asthma (termed "near-fatal" as there is an immediate risk to life) is characterised by a peak flow of less ...
https://en.wikipedia.org/wiki/Acute_severe_asthma
List of MeSH codes (E01)List of MeSH codes (E01)
... maximal midexpiratory flow rate MeSH E01.370.386.700.660.225.600 - peak expiratory flow rate MeSH E01.370.386.700.660.230 - ... forced expiratory flow rates MeSH E01.370.386.700.660.225.500 - maximal expiratory flow rate MeSH E01.370.386.700.660.225.505 ... maximal expiratory flow-volume curves MeSH E01.370.386.700.660.225.510 - ... blood flow velocity MeSH E01.370.370.140 - blood pressure determination MeSH E01.370.370.140.100 - blood pressure monitoring, ...
https://en.wikipedia.org/wiki/List_of_MeSH_codes_(E01)
List of MeSH codes (G09)List of MeSH codes (G09)
... maximal midexpiratory flow rate MeSH G09.772.765.650.300.790 - peak expiratory flow rate MeSH G09.772.765.650.430 - forced ... forced expiratory flow rates MeSH G09.772.765.650.300.590 - maximal expiratory flow rate MeSH G09.772.765.650.300.630 - maximal ... renal blood flow, effective MeSH G09.330.582.163.812.740 - renal plasma flow MeSH G09.330.582.163.812.750 - renal plasma flow, ... heart rate MeSH G09.330.553.400.509.430 - heart rate, fetal MeSH G09.330.553.400.515 - heart sounds MeSH G09.330.553.400. ...
https://en.wikipedia.org/wiki/List_of_MeSH_codes_(G09)
Asian DustAsian Dust
... research studies conducted in Korea and Japan focused on respiratory function performance by measuring peak expiratory flow. ... The dust has been shown to increase the daily mortality rate in one affected region by 1.7%. Due to the concerning health ...
https://en.wikipedia.org/wiki/Asian_Dust
Respiratory inductance plethysmographyRespiratory inductance plethysmography
Peak/mean inspiratory and expiratory flow measures the presence of upper airway flow limitations during inspiration and ... Minute ventilation is equivalent to tidal volume multiplied by respiratory rate and is used to assess metabolic activity. Peak ... qDEEL quantitative difference of end expiratory lung volume is a change in the level of end expiratory lung volume and may be ... Respiratory rate is the number of breaths per minute. A non-specific measure of respiratory disorder. Tidal volume (Vt) is the ...
https://en.wikipedia.org/wiki/Respiratory_inductance_plethysmography
High-frequency ventilationHigh-frequency ventilation
The bias flow controls and indicates the rate of continuous flow of humidified blended gas through the patient circuit. The ... through an adjustable expiratory valve. Small pressure oscillations delivered at a very high rate are superimposed by the ... The peak inspiratory pressure (PIP) window displays the average PIP. During startup a PIP sample is taken with every inhalation ... fresh gas flow (called bias flow), and FiO2. Increases in continuous lung-distending pressure and FiO2 will improve oxygenation ...
https://en.wikipedia.org/wiki/High-frequency_ventilation
Imaging Lung Sound Behavior with Vibration Response ImagingImaging Lung Sound Behavior with Vibration Response Imaging
The peak of inspiratory vibration energy is higher than expiratory energy peak due to inspiration being more active process ... Yosef M, Langer R, Lev S, Glickman YA (17 September 2009). "Effect of airflow rate on vibration response imaging in normal ... The technology is based on the physiologic vibration generated during the breathing process when flow of air distributing ... Following peak inspiration, there is centripetal regression of vibration energy toward the end of inspiration. The same pattern ...
https://en.wikipedia.org/wiki/Imaging_Lung_Sound_Behavior_with_Vibration_Response_Imaging
BronchospasmBronchospasm
During general anesthesia, signs of bronchospasm include wheezing, high peak inspiratory pressures, increased intrinsic PEEP, ... decreased expiratory tidal volumes, and an upsloping capnograph (obstructive pattern). In severe cases, there may be complete ... decreases in airway results in significant flow impediments. Signs and symptoms: Wheezing Diminished breath sounds Prolonged ... manual ventilation The neurotransmitter acetylcholine is known to decrease sympathetic response by slowing the heart rate and ...
https://en.wikipedia.org/wiki/Bronchospasm
Chronic obstructive pulmonary diseaseChronic obstructive pulmonary disease
Testing the peak expiratory flow (the maximum speed of expiration), commonly used in asthma diagnosis, is not sufficient for ... A higher rate of COPD is found in those over 40 years and this increases greatly with advancing age with the highest rate found ... Metabolic syndrome on its own has a high rate of morbidity and mortality and this rate is amplified when comorbid with COPD. ... Studies have shown that people who live in large cities have a higher rate of COPD compared to people who live in rural areas. ...
https://en.wikipedia.org/wiki/Chronic_obstructive_pulmonary_disease
Altitude sicknessAltitude sickness
The rate of ascent, altitude attained, amount of physical activity at high altitude, as well as individual susceptibility, are ... There is thought to be an increase in cerebral venous volume because of an increase in cerebral blood flow and hypocapnic ... and positive end-expiratory pressure. Altitude acclimatization is the process of adjusting to decreasing oxygen levels at ... acclimatizing before attempting to climb a high peak. Simulated altitude equipment such as altitude tents provide hypoxic ( ...
https://en.wikipedia.org/wiki/Altitude_sickness
Modes of mechanical ventilationModes of mechanical ventilation
Expiratory time is defined as the period from the start of expiratory flow to the start of inspiratory flow. The flow-time ... Flow cycling is a form of patient cycling because the rate of flow decay to the cycle threshold is determined by patient ... The peak inspiratory pressure delivered by the ventilator is varied on a breath-to-breath basis to achieve a target tidal ... Inspiratory time is defined as the period from the start of positive flow to the start of negative flow. ...
https://en.wikipedia.org/wiki/Modes_of_mechanical_ventilation
Pulmonary function testingPulmonary function testing
Spirometry includes tests of pulmonary mechanics - measurements of FVC, FEV1, FEF values, forced inspiratory flow rates (FIFs ... for the forced vital capacity to be considered accurate it has to be conducted three times where the peak is sharp in the flow- ... Maximal expiratory pressure (MEP) is the maximal pressure measured during forced expiration (with cheeks bulging) through a ... Reproducibility of the PFT is determined by comparing the values of forced vital capacity (FVC) and forced expiratory volume at ...
https://en.wikipedia.org/wiki/Pulmonary_function_testing
Nomenclature of mechanical ventilationNomenclature of mechanical ventilation
Normally, flow is set to a fixed amount, meaning volume increases linearly over time. Any mode that relies on flow to control ... Plow - Pressure that Phigh drops to during expiratory time (Tlow) PEEP - Positive end-expiratory pressure, pressure created by ... Vt - Tidal volume Ve - Minute ventilation Amplitude - High-frequency ventilation (Active) Pip - Peak inspiratory pressure Pplat ... Machine triggered mandatory breaths may be delivered at a preset rate. Therefore, in contrast to IMV, the mandatory breath ...
https://en.wikipedia.org/wiki/Nomenclature_of_mechanical_ventilation
COVID-19COVID-19
Most commonly, the peak viral load in upper respiratory tract samples occurs close to the time of symptom onset and declines ... Rates of cardiovascular symptoms are high, owing to the systemic inflammatory response and immune system disorders during ... Face coverings limit the volume and travel distance of expiratory droplets dispersed when talking, breathing, and coughing. A ... Displacement ventilation with large natural inlets can move stale air directly to the exhaust in laminar flow while ...
https://en.wikipedia.org/wiki/COVID-19
SpirometrySpirometry
Nunn AJ, Gregg I (April 1989). "New regression equations for predicting peak expiratory flow in adults". BMJ. 298 (6680): 1068- ... along the X-axis a flow-volume loop, which graphically depicts the rate of airflow on the Y-axis and the total volume inspired ... Ciprandi, Giorgio; Cirillo, Ignazio (1 February 2011). "Forced expiratory flow between 25% and 75% of vital capacity may be a ... "Forced expiratory flow between 25% and 75% of vital capacity and FEV1/forced vital capacity ratio in relation to clinical and ...
https://en.wikipedia.org/wiki/Spirometry
SepsisSepsis
Common signs and symptoms include fever, increased heart rate, increased breathing rate, and confusion. There may also be ... High positive end expiratory pressure (PEEP) is recommended for moderate to severe ARDS in sepsis as it opens more lung units ... The presence of low blood pressure, high blood lactate, or low urine output may suggest poor blood flow. Septic shock is low ... Once-daily dosing of aminoglycoside is sufficient to achieve peak plasma concentration for a clinical response without kidney ...
https://en.wikipedia.org/wiki/Sepsis
Respiratory arrestRespiratory arrest
... flow rate, waveform, and inspiratory/expiratory ratio. The volume-cycled ventilation includes the volume-control function and ... Pediatric bags have a valve that limits peak airway pressures to around 35-40 cm of water. Practitioners must tweak valve ... There is maintenance of a minimum respiratory rate. In the pressure support ventilation, the minimum rate is not set. Instead, ... The rate of manual ventilation should not exceed 12 times per minute, or one ventilation every 5 seconds as to avoid ...
https://en.wikipedia.org/wiki/Respiratory_arrest
List of International Organization for Standardization standards, 22000-23999List of International Organization for Standardization standards, 22000-23999
Peak expiratory flow meters for the assessment of pulmonary function in spontaneously breathing humans ISO/TS 23768 Rolling ... Measurement of sputtering rate: mesh-replica method using a mechanical stylus profilometer ISO/TR 22351:2015 Societal security ...
https://en.wikipedia.org/wiki/List_of_International_Organization_for_Standardization_standards,_22000-23999
Maternal physiological changes in pregnancyMaternal physiological changes in pregnancy
Progesterone causes vasodilatation and increased blood flow to the kidneys, and as a result glomerular filtration rate (GFR) ... This causes less space to be available for lung expansion in the chest cavity, and leads to a decrease in expiratory reserve ... and peaks in the third trimester, usually to 30-50% above baseline. Estrogen mediates this rise in cardiac output by increasing ... Pregnant women fall at a similar rate (27%) to women over age of 70 years (28%). Most of the falls (64%) occur during the ...
https://en.wikipedia.org/wiki/Maternal_physiological_changes_in_pregnancy
BarotraumaBarotrauma
The introduction of the non-return valve and high maximum gas supply flow rates have all but eliminated both these risks. In ... positive end-expiratory pressure and respiratory rate. There is no protocol guaranteed to avoid all risk in all applications. ... plateau pressure or peak airway pressure (PAP) may be the most effective predictor of risk, but there is no generally accepted ... High-flow oxygen up to 100% is considered appropriate for diving accidents. Large-bore venous access with isotonic fluid ...
https://en.wikipedia.org/wiki/Barotrauma
CaffeineCaffeine
... which increases respiratory rate, reduces heart rate, and constricts blood vessels. Adenosine receptor antagonism also promotes ... Peak blood concentration is reached within 1-2 hours. It is eliminated by first-order kinetics. Caffeine can also be absorbed ... It appears that caffeine in low doses improves airway function in people with asthma, increasing forced expiratory volume (FEV1 ... rambling flow of thought and speech, tachycardia or cardiac arrhythmia, periods of inexhaustibility, and psychomotor agitation ...
https://en.wikipedia.org/wiki/Caffeine
Peak, Expiratory flow rate nomogram in Libyan schoolchildrenPeak, Expiratory flow rate nomogram in Libyan schoolchildren
Peak expiratory flow rate [‎PEFR]‎ was recorded in a standing position using a mini-Wright peak flow meter. Anthropometric ... Sagher, F.A., Roushdy, M.A. & Hweta, A.M. (‎1999)‎. Peak, Expiratory flow rate nomogram in Libyan schoolchildren. EMHJ - ... The study aimed to develop a peak expiratory flow rate nomogram for Libyan children. Of 900 children randomly selected from ... Peak, Expiratory flow rate nomogram in Libyan schoolchildren. View/. Open. EMHJ_1999_5_3_560_564.pdf (‎359.6Kb)‎ ...
https://apps.who.int/iris/handle/10665/118739
Browsing by Subject Peak Expiratory Flow RateBrowsing by Subject "Peak Expiratory Flow Rate"
Measurement of peak expiratory flow rate [‎PEFR]‎ is required for effective asthma treatment, but ethnic differences affect the ... Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students  ... The study aimed to develop a peak expiratory flow rate nomogram for Libyan children. Of 900 children randomly selected from ... Browsing by Subject "Peak Expiratory Flow Rate". 0-9. A. B. C. D. E. F. G. H. I. J. K. L. M. N. O. P. Q. R. S. T. U. V. W. X. Y ...
https://extranet.who.int/iris/restricted/browse?authority=Peak+Expiratory+Flow+Rate&type=mesh
WHO EMRO | Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students | Volume 16...
Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students ... Comparison of peak expiratory flow rates applying European and Iranian equations to Palestinian students ... Peak expiratory flow rates in healthy Saudi Arabian children living in Riyadh. Annals of allergy, 1993, 71(5):446-50. ... Udupihille M. Peak expiratory flow rate in Sri Lankan schoolchildren of Sinhalese ethnic origin. Respiratory medicine, 1994, 88 ...
https://www.emro.who.int/emhj-volume-16-2010/volume-16-issue-4/article-07.html
Comparisons of peak diurnal expiratory flow variation, postbronchodilator FEV(1) responses, and methacholine inhalation...Comparisons of peak diurnal expiratory flow variation, postbronchodilator FEV(1) responses, and methacholine inhalation...
All the PEFvar indexes and post-BD responses had low sensitivity and high false-negative rates. ... Design: Participants were asked to record peak expiratory flow four times daily for 2 to 3 weeks, followed by an MIC. During a ... Study objectives: The validity of peak expiratory flow variation (PEFvar) as defined by National Heart, Lung, and Blood ... Comparisons of peak diurnal expiratory flow variation, postbronchodilator FEV(1) responses, and methacholine inhalation ...
https://pubmed.ncbi.nlm.nih.gov/11296161/?dopt=Abstract
IMSEAR at SEARO: Peak Expiratory flow Rate in Pregnat Women.
Sunyal DK, Amin MR, Ahmed A, Begum S, Begum M, Rahman N. Peak Expiratory flow Rate in Pregnat Women. Journal of Bangladesh ... In the present study peak expiratory flow rate (PEFR) were estimated in pregnant women during different trimester to observe ... the alteration in air flow rate during pregnancy. This study was carried out in the department of Physiology of Dhaka Medical ... Peak Expiratory flow Rate in Pregnat Women.. Auteur(s): Sunyal, D K. Amin, M R. Ahmed, A. Begum, S. Begum, M. Rahman, N. ...
https://imsear.searo.who.int/handle/123456789/171494?locale=fr
Preventing Chronic Disease: January 2005: 04 0050Preventing Chronic Disease: January 2005: 04 0050
peak expiratory flow rate. [ ] chest X-ray. 2. Under what conditions would you order spirometry for a patient?. ... Skipping questions may lead to the loss of important information because of logical errors in the flow of questions. ... The data obtained therefore cannot be used to estimate incidence rates. The following question is better and will provide a ... Avoid measurements by intrusive means, or consider using incentives to increase participation rate. ...
https://www.cdc.gov/pcd/issues/2005/jan/04_0050.htm
Occupational asthma: MedlinePlus Medical EncyclopediaOccupational asthma: MedlinePlus Medical Encyclopedia
Peak expiratory flow rate. Treatment. Avoiding exposure to the substance that is causing your asthma is the best treatment. ...
https://medlineplus.gov/ency/article/000110.htm
Abbreviations
Peak expiratory flow rate. PEL. Permissible exposure limit. PHS. Public Health Service. ...
https://wwwn.cdc.gov/eWorld/Appendix/Abbreviations
Peak Expiratory Flow Rate amongst an Aboriginal Community in Peninsular Malaysia | Insight Medical PublishingPeak Expiratory Flow Rate amongst an Aboriginal Community in Peninsular Malaysia | Insight Medical Publishing
Peak Expiratory Flow Rate amongst an Aboriginal Community in Peninsular Malaysia, Hui Jean Yap , Wooi Wooi Khaw , Patmapriya ... Besides the baseline socio-demographic information, peak expiratory flow rate was measured using the Wright peak flow meter ... Malaysia by determining the Peak Expiratory Flow Rate (PEFR) using a Peak Flow Meter.. ... Peak Expiratory Flow Rate (PEFR) value can be used as an indicator of a persons health and it is a clinical tool in diagnosis ...
https://internalmedicine.imedpub.com/peak-expiratory-flow-rate-amongst-an-aboriginalcommunity-in-peninsular-malaysia.php?aid=6362
PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION: AN OBSERVATIONAL STUDY | VIMS JOURNAL OF PHYSICAL THERAPY PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION: AN OBSERVATIONAL STUDY | VIMS JOURNAL OF PHYSICAL THERAPY
PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION: AN OBSERVATIONAL STUDY PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION ... PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION: AN OBSERVATIONAL STUDY : PEAK EXPIRATORY FLOW RATE IN SEDENTARY POPULATION. ... Badami S, Baragundi M. Effects of sedentary life style on respiratory rates and peak expiratory flow rate among medical ... Hence the aim of the study was to evaluate the effects of a sedentary lifestyle on peak expiratory flow rate. METHOD- The study ...
https://vimsptcr.in/index.php/main/article/view/17
Evaluation of Peak Expiratory Flow rates (PEFR) of Workers in a Cerment Factory in Port Harcout South-South; Nigeria | The...Evaluation of Peak Expiratory Flow rates (PEFR) of Workers in a Cerment Factory in Port Harcout South-South; Nigeria | The...
Index: AIM (Africa) Main subject: Quality of Health Care / Signs and Symptoms / Peak Expiratory Flow Rate / Occupational ... Index: AIM (Africa) Main subject: Quality of Health Care / Signs and Symptoms / Peak Expiratory Flow Rate / Occupational ... Evaluation of Peak Expiratory Flow rates (PEFR) of Workers in a Cerment Factory in Port Harcout South-South; Nigeria ... This study aimed to measure the peak expiratory flow rates (PEFR) of workers in a cement manufacturing company in Port Harcourt ...
https://search.bvsalud.org/aimafro/resource/en/biblio-1272838
Pediatric Reactive Airway Disease: Practice Essentials, Pathophysiology and Etiology, EpidemiologyPediatric Reactive Airway Disease: Practice Essentials, Pathophysiology and Etiology, Epidemiology
Decreased peak expiratory flow rate * Inspiratory-to-expiratory ratio (normal ratios are 1:2 to 1:3) ... Each child blew 5 times into a standard Wright Peak Flow Meter, and the highest reading was accepted in each case. All ... ED visits peak in the fall, while school holidays disrupt the spread of infections, resulting in a subsequent decrease in ED ... Reversible airflow obstruction of at least 10% of predicted forced expiratory volume in one second (FEV1) after use of a short- ...
https://emedicine.medscape.com/article/800119
Lagged acute respiratory outcomes among children related to... : Environmental EpidemiologyLagged acute respiratory outcomes among children related to... : Environmental Epidemiology
FEV1, forced expiratory volume in one second; PEFR, peak expiratory flow rate. ... performed three consecutive maneuvres for peak expiratory flow rate (PEFR) and forced expiratory volume in one second (FEV1) ... was most pronounced for peak expiratory flow rate (PEFR) for PM2.5 and SO2. A preceding 5-day average SO2 exposure had the ... School children from three schools (the school from Diepkloof was excluded because of the unavailability of peak flow meters) ...
https://journals.lww.com/environepidem/Fulltext/2022/12000/Lagged_acute_respiratory_outcomes_among_children.1.aspx
Statistics Notes: Measurement error | The BMJ
The large variability in peak expiratory flow rate is well known, so individual readings of peak expiratory flow are seldom ... having peak expiratory flow rates of 190, 220, 200, and 200 1/min. ...
https://www.bmj.com/content/313/7059/744.1.full
From smartphone to EHR: a case report on integrating patient-generated health data | npj Digital MedicineFrom smartphone to EHR: a case report on integrating patient-generated health data | npj Digital Medicine
Those patients submitted multiple measures of peak expiratory flow rate per week. In one instance, the measure triggered a ... were able to share data on inhaler usage and peak expiratory flow rate (PEFR) with a local pulmonologist who ordered this data ... a The providers Epic view, when searching to order a patients peak expiratory flow rates. For data to flow into an Epic chart ... The app also allowed the option for participants to enter peak expiratory flow rate (PEFR) as captured by the patients own ...
https://www.nature.com/articles/s41746-018-0030-8?error=cookies_not_supported&code=343ece74-a2fa-4f61-8e2c-1b43fc2797e0
Treatment of complex airway stenoses using patient-specific 3D-engineered stents: a proof-of-concept study | ThoraxTreatment of complex airway stenoses using patient-specific 3D-engineered stents: a proof-of-concept study | Thorax
... peak expiratory flow rate; RMB, right main bronchus; TAT, turnaround time (time between inclusion and stent implantation, in ... peak expiratory flow rate [PEFR] ,20%, acute respiratory distress) or with malignant obstruction were excluded. ... Whats in a name? expiratory tracheal narrowing in adults explained. Clin Radiol 2013;68:1268-75.doi:10.1016/j.crad.2013.06.017 ... The complication rate at 3 months was 40% (4 of 10: 1 mucus plugging, 2 migrations and 1 removal for cough), and three required ...
https://thorax.bmj.com/content/74/8/810
Advanced Search Results - Public Health Image Library(PHIL)Advanced Search Results - Public Health Image Library(PHIL)
Categories: Peak Expiratory Flow Rate Image Types: Photo, Illustrations, Video, Color, Black&White, PublicDomain, ...
https://phil.cdc.gov/AdvancedSearchResults.aspx?Search=Peak+Expiratory+Flow+Rate&parentid=10963&catid=19495
Environmental Triggers of Asthma: Initial Check | Environmental Medicine | ATSDREnvironmental Triggers of Asthma: Initial Check | Environmental Medicine | ATSDR
Her peak expiratory flow rate (PEFR) reading is 285 liters per minute (L/min). You explain to the patient and her mother that ... Although variability in peak expiratory flow limits its application in screening for asthma, simple peak expiratory flow ... In the pulmonologists office, use the measurement of forced expiratory volume in 1 second (FEV1) before and after short-acting ... Pulmonary auscultation reveals inspiratory and expiratory wheezing scattered throughout both lung fields. ...
https://www.atsdr.cdc.gov/csem/asthma/initial_check.html
Asthma: Peak Expiratory Flow and Personal Best - Health Information Library | PeaceHealthAsthma: Peak Expiratory Flow and Personal Best - Health Information Library | PeaceHealth
Your peak flow drops when the tubes that carry air to the lungs (bronchial tubes) narrow. A decrease in the... ... Peak expiratory flow (PEF) measures how much air you or your child can breathe out using the greatest effort. It is used in the ... Peak expiratory flow rates are compared with charts that list normal values for sex, race, and height. ... Asthma: Peak Expiratory Flow and Personal Best. Overview. Peak expiratory flow (PEF) measures how much air you or your child ...
https://www.peacehealth.org/medical-topics/id/aa126622
Plus itPlus it
Malnutrition and peak expiratory flow rate. Eur Respir J 1988; 1: 801-803. ... Forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) were low in all groups (mean FEV1 z-score: −0.47 for ... Recruitment flow diagram for spirometry results. Recruitment of sibling and community control only commenced at the time of 7- ... Primary lung function outcomes were forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and the FEV1/FVC ratio ...
https://erj.ersjournals.com/content/49/4/1601301
Marine oil supplement fails to produce beneficial results in non-asthmatic elite runners: RCTMarine oil supplement fails to produce beneficial results in non-asthmatic elite runners: RCT
peak expiratory flow rate (PEFR), the maximum speed of expiration. - maximal voluntary ventilation (MVV), a measure of the ... forced expiratory flow from 25% to 75% of lung volume (FEF25-75), the speed of air exiting the lungs during the middle portion ... maximal expiratory mouth pressure (PEmax), the most common measurement of expiratory muscle strength ... forced expiratory volume in 1 second (FEV1), the volume of air that can be forcefully expelled in one second of the FVC test. ...
https://www.nutraingredients.com/Article/2018/08/29/Marine-oil-supplement-fails-to-produce-beneficial-results-in-non-asthmatic-elite-runners-RCT
Should Magnesium Be Used for COPD Exacerbations?Should Magnesium Be Used for COPD Exacerbations?
The trial found a significant improvement in peak expiratory flow rate (PEFR) with Mg and a nonsignificant reduction in ... All RCTs were small, and only soft outcomes like PEFR and forced expiratory volume in 1 second (FEV1) seemed to improve with Mg ...
https://www.medscape.com/viewarticle/957226
The effects of peppermint on exercise performance | Journal of the International Society of Sports Nutrition | Full TextThe effects of peppermint on exercise performance | Journal of the International Society of Sports Nutrition | Full Text
... peak expiratory flow rate (PEF), and peak inspiratory flow (PIF) were determined one day before, and after the supplementation ... and respiratory rate in the young male students. Relaxation of bronchial smooth muscles, increase in the ventilation and brain ... Blood pressure, heart rate, and spirometry parameters including forced vital capacity (FVC), ... peak expiratory flow rate (PEF), and peak inspiratory flow (PIF) were determined one day before, and after the supplementation ...
https://jissn.biomedcentral.com/articles/10.1186/1550-2783-10-15
The EPA National Library Catalog | EPA National Library Network | US EPAThe EPA National Library Catalog | EPA National Library Network | US EPA
Diurnal variations ; Respiratory diseases ; Peak expiratory flow rate ; Signs and symptoms ; Asthma ; Air pollution effects( ... Normal Range of Diurnal Changes in Peak Expiratory Flow Rates: Relationship to Symptoms and Respiratory Disease.. ...
https://cfpub.epa.gov/ols/catalog/advanced_bibliography.cfm?&FIELD1=SUBJECT&INPUT1=Airway%20resistance&TYPE1=EXACT&LOGIC1=AND&COLL=&SORT_TYPE=MTIC&start_row=19
NIOSHTIC-2 Search Results - Full View
Her peak expiratory flow rate declined over 20% when exposed to egg products. Positive radioallergosorbent tests to whole egg, ... and reduced peak expiratory flow rates. A positive skin prick test to whole egg, egg white, and ovalbumin was derived. This ...
http://www2a.cdc.gov/nioshtic-2/BuildQyr.asp?s1=skin&t3=1&f1=%2A&s5=percutaneous&Startyear=&t1=1&s2=dermal&t4=1&terms=7&Adv=1&ct=&B1=Search&f2=%2A&t2=1&Limit=500&Sort=DP+DESC&s3=dermatitis&f3=%2A&s4=cutaneous&EndYear=&f4=%2A&f5=%2A&whichdate=DP&D1=10&PageNo=298&RecNo=2978&View=f&
Monitoring AsthmaMonitoring Asthma
A peak flow meter is a hand-held device that estimates the peak expiratory flow rate. This flow rate is a measure of how fast ... A decrease in peak flow measurement over time may indicate worsening of asthma and an increase in peak flow measurement may ... If asthma-related bronchoconstriction is present, peak flow levels will be low. Peak flow measurements at regular intervals ... Self-Monitoring - Peak Flow Meter. Based on the severity of asthma in different patients, doctors may recommend use of a self- ...
https://www.news-medical.net/health/Monitoring-Asthma.aspx
Spiriva and Pulmonary mass, a phase IV clinical study of FDA data - eHealthMe
Peak expiratory flow rate decreased: 128 reports. *Pericardial effusion (fluid around the heart): 300 reports ... Respiratory rate increased (excess breathing rate/min): 753 reports. *Respiratory tract congestion (blockage on respiratory ... Myocardial ischaemia (the blood flow through one or more of the blood vessels that lead to heart (coronary arteries) is ... Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow)): 519 reports ...
https://www.ehealthme.com/ds/spiriva/pulmonary-mass/
MeaningsMeanings
The Mini Wright Peak Flow Meter measures the maximum expiratory flow rate during a forced expiration. ...
https://www.yourdictionary.com/wright
PEFRSpirometryFEV1MeasurementInspiratory and expiratoryExacerbationMeterSymptomsInhalationCOPDIndicesMeasurementsPatientsPulmonaryAirwaysBronchialParametersAdultsSchoolchildrenReadingsVariationHeart rate variabMaximalOutcomesSevereDyspnoeaDecreaseNormalEmergencyStudyNosePerson'sMeasuresFunction
PEFR19
  • Peak expiratory flow rate [‎PEFR]‎ was recorded in a standing position using a mini-Wright peak flow meter. (who.int)
  • Measurement of peak expiratory flow rate [‎PEFR]‎ is required for effective asthma treatment, but ethnic differences affect the application of prediction equations for lung function. (who.int)
  • Many reports have emphasized the importance of measuring peak expiratory flow rate (PEFR) in general practice to establish the diagnosis of asthma and for monitoring patients with asthma [2-5]. (who.int)
  • In the present study peak expiratory flow rate (PEFR) were estimated in pregnant women during different trimester to observe the alteration in air flow rate during pregnancy. (who.int)
  • Information on peak expiratory flow rate (PEFR) among Orang Asli is extremely limited and there has only been one such study which was carried out in 1971. (imedpub.com)
  • Methods: PEFR was measured using the Wright Peak Flow meter and the best of the three readings taken was used. (imedpub.com)
  • Peak Expiratory Flow Rate (PEFR) value can be used as an indicator of a person's health and it is a clinical tool in diagnosis, management and follow up for respiratory diseases. (imedpub.com)
  • It has been shown that as a person ages, their PEFR decreases.6 Peak flow measurements can be used to measure the strength of muscles of respiration6 and thus can be used to monitor respiratory impairment. (imedpub.com)
  • Diurnal variation of PEFR is used to diagnose and in the management of bronchial asthma.6 Self-monitoring of PEFR by asthmatic patients also helps to increase the effectiveness of treatment.7 Limited research has been carried out and published in the area of measuring lung function using peak flow meter in Malaysia let alone among the Orang Asli. (imedpub.com)
  • The studies that were carried out in Malaysia were mainly focused on the elderly or children.8,9,10 Only one reported study was carried out among the Orang Asli to determine their lung function in 1971 by Dugdale et al.11 They found most of the respondents peak expiratory flow rate (PEFR) value was lower than the predictive value. (imedpub.com)
  • This study aimed to measure the peak expiratory flow rates ( PEFR ) of workers in a cement manufacturing company in Port Harcourt and estimate the determinants of the measured rates. (bvsalud.org)
  • Consented subjects using the Asthma Health app (built on Apple's ResearchKit platform) were able to share data on inhaler usage and peak expiratory flow rate (PEFR) with a local pulmonologist who ordered this data on Epic's EHR. (nature.com)
  • Her peak expiratory flow rate (PEFR) reading is 285 liters per minute (L/min). (cdc.gov)
  • The trial found a significant improvement in peak expiratory flow rate (PEFR) with Mg and a nonsignificant reduction in hospitalizations. (medscape.com)
  • All RCTs were small, and only soft outcomes like PEFR and forced expiratory volume in 1 second (FEV 1 ) seemed to improve with Mg. No adverse events were noted, but this should be interpreted with caution given that many studies did not report on adverse events at all. (medscape.com)
  • 12 A more recent study 17 concluded that using a higher dose of magnesium sulfate resulted in a faster and longer improvement in pulmonary function (ie, pulmonary function test results and PEFR), and a higher discharge rate in children who did not respond to β 2 -agonists. (cfp.ca)
  • Se abrevia en inglés como PEFR y PFR. (bvsalud.org)
  • Factorial repeated measures analysis of variance was used to evaluate the differences in the rate of change in FEV1 predicted%, FVC predicted% and PEFR between the children in Cairo and Shibin El-Kom. (who.int)
  • The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) is a person's maximum speed of expiration, as measured with a peak flow meter, a small, hand-held device used to monitor a person's ability to breathe out air. (megmedius.com)
Spirometry4
  • Blood pressure, heart rate, and spirometry parameters including forced vital capacity (FVC), peak expiratory flow rate (PEF), and peak inspiratory flow (PIF) were determined one day before, and after the supplementation period. (biomedcentral.com)
  • The results of the experiment support the effectiveness of peppermint essential oil on the exercise performance, gas analysis, spirometry parameters, blood pressure, and respiratory rate in the young male students. (biomedcentral.com)
  • INTRODUCTION: Spirometry and peak expiratory flow measurement (PEF) are combined during functional respiratory assessments. (bvsalud.org)
  • spirometry and peak expiratory flow rate determination. (nsw.gov.au)
FEV14
  • Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. (medicalxpress.com)
  • The new digital peak flow meter (DPM) evaluates the forced expiratory volume in the first second (FEV1) and PEF. (bvsalud.org)
  • In a 12-month, randomised, double-blind, placebo-controlled, parallel-group study in 812 adults (mean age 64 yrs, mean forced expiratory volume in one second (FEV1) 36% predicted normal), patients received two inhalations twice daily of either budesonide/formoterol (Symbicort) 160/4.5 microg (delivered dose), budesonide 200 microg (metered dose), formoterol 4.5 microg or placebo. (wordpress.com)
  • Severe exacerbations and FEV1 (primary variables), peak expiratory flow (PEF), COPD symptoms, health-related quality of life (HRQL), mild exacerbations, use of reliever beta2-agonist and safety variables were recorded. (wordpress.com)
Measurement4
  • A decrease in peak flow measurement over time may indicate worsening of asthma and an increase in peak flow measurement may show increased control of asthma or a response to controller medications inhaled. (news-medical.net)
  • In summary this thesis describes development of a method for the measurement and analysis of tidal breathing expiratory flow patterns, which yields consistent and physiologically plausible changes in defined tidal indices following bronchodilator treatment. (ed.ac.uk)
  • Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. (bvsalud.org)
  • Volume Measurement, Flow Measurement. (industryarc.com)
Inspiratory and expiratory2
  • Pulmonary auscultation reveals inspiratory and expiratory wheezing scattered throughout both lung fields. (cdc.gov)
  • The only device that oscillates a column of air in both inspiratory and expiratory phase is the "Quake. (rtmagazine.com)
Exacerbation2
  • Future trials should investigate the following outcomes: lung function, exacerbation rate, asthma symptoms, hospital admissions, use of medications and days off work or school. (cochrane.org)
  • After one year, there were no significant differences between the three groups with respect to increases in morning peak expiratory flow, asthma exacerbation rates, or quality of life. (medicaleconomics.com)
Meter8
  • Peak expiratory flow is measured with a peak flow meter , an inexpensive device that can be used at home. (peacehealth.org)
  • Using a Peak Flow Meter device showed an improvement in the lung capacity and inhalation ability after inhalation of peppermint aroma [ 14 ]. (biomedcentral.com)
  • Based on the severity of asthma in different patients, doctors may recommend use of a self-monitoring device called the peak flow meter. (news-medical.net)
  • A peak flow meter is a hand-held device that estimates the peak expiratory flow rate. (news-medical.net)
  • The Mini Wright Peak Flow Meter measures the maximum expiratory flow rate during a forced expiration. (yourdictionary.com)
  • A peak flow meter only assesses the rate at which air is compelled out of the lungs. (industryarc.com)
  • The peak flow meter is a scientifically designed portable device to measure lung capacity or airflow in the lungs. (megmedius.com)
  • Sets are comprised of a nose clip, two mouth pieces and a DOFIN Peak Flow Meter. (megmedius.com)
Symptoms2
  • A decrease in the peak flow can show that the bronchial tubes have narrowed even before asthma symptoms develop. (peacehealth.org)
  • Response (Symptoms and Peak Flow )? (fpnotebook.com)
Inhalation3
  • The validity of peak expiratory flow variation (PEFvar) as defined by National Heart, Lung, and Blood Institute (NHLBI) guidelines as a diagnostic tool for suspected asthma or its comparative value to methacholine inhalation challenge (MIC) or postbronchodilator (BD) FEV(1) responses has not been formally assessed. (nih.gov)
  • This flow rate is a measure of how fast one can exhale air from your lungs, after a deep inhalation, which demonstrates how well air is moving through the airways. (news-medical.net)
  • Assist in inhalation therapy-obtains Peak Expiratory Flow Rates and sets up small volume nebulizers. (appone.com)
COPD2
  • Background Tiotropium improves lung function and ameliorates the annual decline in forced expiratory volume in 1 s (FEV 1 ) after bronchodilator use in patients with mild to moderate chronic obstructive pulmonary disease (COPD). (ersjournals.com)
  • A common bedside test for distinguishing COPD from CHF is peak expiratory flow (PEF). (medscape.com)
Indices3
  • Saraswathi I, Christy A, Saravanan A, Dr Prema S. Correlation of Obesity Indices with Peak Expiratory Flow Rate in Males and Females. (vimsptcr.in)
  • The research presented in this thesis focuses on the identification and utilisation of novel indices measured from tidal breathing expiratory flow patterns to assess airflow obstruction in adults. (ed.ac.uk)
  • After analysis of these indices in pilot studies, three indices, (TBEV i (volume of air exhaled in the first second of a tidal breath), TPEF (peak tidal expiratory flow rate) and EF25 (expiratory flow at end tidal volume plus 25% end tidal volume) were identified which changed consistently following bronchodilators and these were subsequently studied in more depth. (ed.ac.uk)
Measurements6
  • Peak flow measurements at regular intervals help in estimating the level of control of asthma. (news-medical.net)
  • Usually, 3 peak flow measurements are made and the best reading is recorded. (news-medical.net)
  • Measurements are recorded once or twice every day to monitor changes in peak flow during the day or over a period of time. (news-medical.net)
  • Based on the results of peak flow measurements, patients can go back and refer to their asthma action plan and take appropriate action. (news-medical.net)
  • Health care providers review peak flow measurements at regular intervals and make adjustments to the asthma action plan. (news-medical.net)
  • Lung function tests revealed no significant differences in the measurements of lung growth-for example, forced vital capacity, functional residual capacity, and total lung capacity-but the index children had significant reductions in measurements of airways obstruction-for example, forced expiratory volume in one second, maximum expiratory flow at 75, 50 and 25% of vital capacity, and airways resistance. (bmj.com)
Patients2
  • Since the resulting vibration is not determined by the patient's rate of flow, the Quake theoretically may be more helpful for patients with severe obstructive lung disease who are unable to generate high peak expiratory flow rates. (rtmagazine.com)
  • This device allows peak flow to be measured before and after patients are medicated. (megmedius.com)
Pulmonary1
  • In some people with asthma, expiratory airflow limitation, premature closure of small airways, activity of inspiratory muscles at the end of expiration and reduced pulmonary compliance may lead to lung hyperinflation. (cochrane.org)
Airways1
  • it demonstrated efficacy in secretion mobilization for a handheld device called the "Flutter," which was a modification of a PEP (positive expiratory pressure) device in which a steel ball oscillated up and down in a cone, vibrating the column of air between the mouth and the lower airways. (rtmagazine.com)
Bronchial1
  • Your peak flow drops when the tubes that carry air to the lungs (bronchial tubes) narrow. (peacehealth.org)
Parameters1
  • There were no significant differences in morning peak expiratory flow (PEF) (primary endpoint), evening PEF, overall daytime or nighttime symptom scores, or lung function parameters (forced expiratory volume in 1 sec, forced vital capacity) between DPI and MDI. (ox.ac.uk)
Adults1
  • Joshi V, Shah S. Effect of Body Mass Index (BMI) on Peak Expiratory Flow Rate in young adults. (vimsptcr.in)
Schoolchildren1
  • This longitudinal study examined the effect of a rural in rural areas ( 3 ) and lung function growth rate is higher versus urban environment and other risk factors on pul- in rural children than urban children ( 4 ), although this monary function tests in schoolchildren in Egypt. (who.int)
Readings1
  • The large variability in peak expiratory flow rate is well known, so individual readings of peak expiratory flow are seldom used. (bmj.com)
Variation1
  • The first child shows typical variation, having peak expiratory flow rates of 190, 220, 200, and 200 1/min. (bmj.com)
Heart rate variab2
  • Heart Rate Variability (HRV) Biofeedback is used to restore balance in the activity of the sympathetic and parasympathetic branches of the autonomic nervous system by increasing or reducing the activity of either. (researchgate.net)
  • Autonomic behavior is assessed through Heart Rate Variability (HRV) a simple, non-invasive tool for the detection and study of cardiac irregularities in many conditions. (bvsalud.org)
Maximal1
  • Peak expiratory flow (PEF) is the maximum flow generated during expiration performed with maximal force and starting after a full inspiration [1]. (who.int)
Outcomes1
  • Respiratory outcomes were assessed pre‐ and postintervention, including forced vital capacity, forced expiratory volume, peak inspiratory flow rate (PIFR), MIP, and inspiratory peak power. (bournemouth.ac.uk)
Severe1
  • NAVIGATOR trial results presented at CHEST 2021 show the effect of tezepelumab on peak expiratory flow rates in severe asthma. (empr.com)
Dyspnoea2
  • Complication rate, dyspnoea, quality of life and respiratory function were followed after implantation. (bmj.com)
  • Results from one study showed no significant difference between the training group and the control group (no treatment or usual care) for expiratory muscle strength, lung function, sensation of dyspnoea (breathlessness) and use of reliever medication. (cochrane.org)
Decrease1
  • Peak expiratory flow rate was found to decrease over the workshift in a manner similar to that experienced by cotton workers. (cdc.gov)
Normal2
  • Peak expiratory flow rate in normal Nigerian children. (vimsptcr.in)
  • Peak expiratory flow rates are compared with charts that list normal values for sex, race, and height. (peacehealth.org)
Emergency1
  • In 2004 in Canada, asthma resulted in 1.8 million emergency department visits, with a 10% to 25% admission rate to hospital and 3780 deaths. (cfp.ca)
Study4
  • The study aimed to develop a peak expiratory flow rate nomogram for Libyan children. (who.int)
  • Hence the aim of the study was to evaluate the effects of a sedentary lifestyle on peak expiratory flow rate. (vimsptcr.in)
  • The aim of this study is to assess the success of minute peak flow rates (spontaneous peak inspiratory flow rate (SPIF) and spontaneous peak expiratory flow rate (SPEF)) measured during a spontaneous breathing trial (SBT) in the prediction of weaning outcome. (biomedcentral.com)
  • The aim of the study is to analyze heart rate dynamics in obese children by measures of HRV. (bvsalud.org)
Nose1
  • The first patient was responsible for candling and breaking eggs and suffered from job related wheezing, runny nose, sneezing, and reduced peak expiratory flow rates. (cdc.gov)
Person's1
  • A person's personal best is his or her highest peak flow. (peacehealth.org)
Measures1
  • Peak expiratory flow (PEF) measures how much air you or your child can breathe out using the greatest effort. (peacehealth.org)
Function1
  • It offers an easy and quick way to measure peak expiratory flow which helps you to monitor and control your asthma conditions as well as lung function. (megmedius.com)